• File: general-template.php
  • Full Path: /home/u505525515/domains/medineeestates.com/public_html/wp-includes/general-template.php
  • Date Modified: 05/25/2026 6:29 AM
  • File size: 170.83 KB
  • MIME-type: text/x-php
  • Charset: utf-8
<?php
/**
 * General template tags that can go anywhere in a template.
 *
 * @package WordPress
 * @subpackage Template
 */

/**
 * Loads header template.
 *
 * Includes the header template for a theme or if a name is specified then a
 * specialized header will be included.
 *
 * For the parameter, if the file is called "header-special.php" then specify
 * "special".
 *
 * @since 1.5.0
 * @since 5.5.0 A return value was added.
 * @since 5.5.0 The `$args` parameter was added.
 *
 * @param string|null $name The name of the specialized header. Default null.
 * @param array       $args Optional. Additional arguments passed to the header template.
 *                          Default empty array.
 * @return void|false Void on success, false if the template does not exist.
 */
function get_header( $name = null, $args = array() ) {
    /**
     * Fires before the header template file is loaded.
     *
     * @since 2.1.0
     * @since 2.8.0 The `$name` parameter was added.
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string|null $name Name of the specific header file to use. Null for the default header.
     * @param array       $args Additional arguments passed to the header template.
     */
    do_action( 'get_header', $name, $args );

    $templates = array();
    $name      = (string) $name;
    if ( '' !== $name ) {
        $templates[] = "header-{$name}.php";
    }

    $templates[] = 'header.php';

    if ( ! locate_template( $templates, true, true, $args ) ) {
        return false;
    }
}

/**
 * Loads footer template.
 *
 * Includes the footer template for a theme or if a name is specified then a
 * specialized footer will be included.
 *
 * For the parameter, if the file is called "footer-special.php" then specify
 * "special".
 *
 * @since 1.5.0
 * @since 5.5.0 A return value was added.
 * @since 5.5.0 The `$args` parameter was added.
 *
 * @param string|null $name The name of the specialized footer. Default null.
 * @param array       $args Optional. Additional arguments passed to the footer template.
 *                          Default empty array.
 * @return void|false Void on success, false if the template does not exist.
 */
function get_footer( $name = null, $args = array() ) {
    /**
     * Fires before the footer template file is loaded.
     *
     * @since 2.1.0
     * @since 2.8.0 The `$name` parameter was added.
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string|null $name Name of the specific footer file to use. Null for the default footer.
     * @param array       $args Additional arguments passed to the footer template.
     */
    do_action( 'get_footer', $name, $args );

    $templates = array();
    $name      = (string) $name;
    if ( '' !== $name ) {
        $templates[] = "footer-{$name}.php";
    }

    $templates[] = 'footer.php';

    if ( ! locate_template( $templates, true, true, $args ) ) {
        return false;
    }
}

/**
 * Loads sidebar template.
 *
 * Includes the sidebar template for a theme or if a name is specified then a
 * specialized sidebar will be included.
 *
 * For the parameter, if the file is called "sidebar-special.php" then specify
 * "special".
 *
 * @since 1.5.0
 * @since 5.5.0 A return value was added.
 * @since 5.5.0 The `$args` parameter was added.
 *
 * @param string|null $name The name of the specialized sidebar. Default null.
 * @param array       $args Optional. Additional arguments passed to the sidebar template.
 *                          Default empty array.
 * @return void|false Void on success, false if the template does not exist.
 */
function get_sidebar( $name = null, $args = array() ) {
    /**
     * Fires before the sidebar template file is loaded.
     *
     * @since 2.2.0
     * @since 2.8.0 The `$name` parameter was added.
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string|null $name Name of the specific sidebar file to use. Null for the default sidebar.
     * @param array       $args Additional arguments passed to the sidebar template.
     */
    do_action( 'get_sidebar', $name, $args );

    $templates = array();
    $name      = (string) $name;
    if ( '' !== $name ) {
        $templates[] = "sidebar-{$name}.php";
    }

    $templates[] = 'sidebar.php';

    if ( ! locate_template( $templates, true, true, $args ) ) {
        return false;
    }
}

/**
 * Loads a template part into a template.
 *
 * Provides a simple mechanism for child themes to overload reusable sections of code
 * in the theme.
 *
 * Includes the named template part for a theme or if a name is specified then a
 * specialized part will be included. If the theme contains no {slug}.php file
 * then no template will be included.
 *
 * The template is included using require, not require_once, so you may include the
 * same template part multiple times.
 *
 * For the $name parameter, if the file is called "{slug}-special.php" then specify
 * "special".
 *
 * @since 3.0.0
 * @since 5.5.0 A return value was added.
 * @since 5.5.0 The `$args` parameter was added.
 *
 * @param string      $slug The slug name for the generic template.
 * @param string|null $name Optional. The name of the specialized template. Default null.
 * @param array       $args Optional. Additional arguments passed to the template.
 *                          Default empty array.
 * @return void|false Void on success, false if the template does not exist.
 */
function get_template_part( $slug, $name = null, $args = array() ) {
    /**
     * Fires before the specified template part file is loaded.
     *
     * The dynamic portion of the hook name, `$slug`, refers to the slug name
     * for the generic template part.
     *
     * @since 3.0.0
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string      $slug The slug name for the generic template.
     * @param string|null $name The name of the specialized template
     *                          or null if there is none.
     * @param array       $args Additional arguments passed to the template.
     */
    do_action( "get_template_part_{$slug}", $slug, $name, $args );

    $templates = array();
    $name      = (string) $name;
    if ( '' !== $name ) {
        $templates[] = "{$slug}-{$name}.php";
    }

    $templates[] = "{$slug}.php";

    /**
     * Fires before an attempt is made to locate and load a template part.
     *
     * @since 5.2.0
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string   $slug      The slug name for the generic template.
     * @param string   $name      The name of the specialized template
     *                            or an empty string if there is none.
     * @param string[] $templates Array of template files to search for, in order.
     * @param array    $args      Additional arguments passed to the template.
     */
    do_action( 'get_template_part', $slug, $name, $templates, $args );

    if ( ! locate_template( $templates, true, false, $args ) ) {
        return false;
    }
}

/**
 * Displays search form.
 *
 * Will first attempt to locate the searchform.php file in either the child or
 * the parent, then load it. If it doesn't exist, then the default search form
 * will be displayed. The default search form is HTML, which will be displayed.
 * There is a filter applied to the search form HTML in order to edit or replace
 * it. The filter is {@see 'get_search_form'}.
 *
 * This function is primarily used by themes which want to hardcode the search
 * form into the sidebar and also by the search widget in WordPress.
 *
 * There is also an action that is called whenever the function is run called,
 * {@see 'pre_get_search_form'}. This can be useful for outputting JavaScript that the
 * search relies on or various formatting that applies to the beginning of the
 * search. To give a few examples of what it can be used for.
 *
 * @since 2.7.0
 * @since 5.2.0 The `$args` array parameter was added in place of an `$echo` boolean flag.
 *
 * @param array $args {
 *     Optional. Array of display arguments.
 *
 *     @type bool   $echo       Whether to echo or return the form. Default true.
 *     @type string $aria_label ARIA label for the search form. Useful to distinguish
 *                              multiple search forms on the same page and improve
 *                              accessibility. Default empty.
 * }
 * @return void|string Void if 'echo' argument is true, search form HTML if 'echo' is false.
 */
function get_search_form( $args = array() ) {
    /**
     * Fires before the search form is retrieved, at the start of get_search_form().
     *
     * @since 2.7.0 as 'get_search_form' action.
     * @since 3.6.0
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @link https://core.trac.wordpress.org/ticket/19321
     *
     * @param array $args The array of arguments for building the search form.
     *                    See get_search_form() for information on accepted arguments.
     */
    do_action( 'pre_get_search_form', $args );

    $echo = true;

    if ( ! is_array( $args ) ) {
        /*
         * Back compat: to ensure previous uses of get_search_form() continue to
         * function as expected, we handle a value for the boolean $echo param removed
         * in 5.2.0. Then we deal with the $args array and cast its defaults.
         */
        $echo = (bool) $args;

        // Set an empty array and allow default arguments to take over.
        $args = array();
    }

    // Defaults are to echo and to output no custom label on the form.
    $defaults = array(
        'echo'       => $echo,
        'aria_label' => '',
    );

    $args = wp_parse_args( $args, $defaults );

    /**
     * Filters the array of arguments used when generating the search form.
     *
     * @since 5.2.0
     *
     * @param array $args The array of arguments for building the search form.
     *                    See get_search_form() for information on accepted arguments.
     */
    $args = apply_filters( 'search_form_args', $args );

    // Ensure that the filtered arguments contain all required default values.
    $args = array_merge( $defaults, $args );

    $format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml';

    /**
     * Filters the HTML format of the search form.
     *
     * @since 3.6.0
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string $format The type of markup to use in the search form.
     *                       Accepts 'html5', 'xhtml'.
     * @param array  $args   The array of arguments for building the search form.
     *                       See get_search_form() for information on accepted arguments.
     */
    $format = apply_filters( 'search_form_format', $format, $args );

    $search_form_template = locate_template( 'searchform.php' );

    if ( '' !== $search_form_template ) {
        ob_start();
        require $search_form_template;
        $form = ob_get_clean();
    } else {
        // Build a string containing an aria-label to use for the search form.
        if ( $args['aria_label'] ) {
            $aria_label = 'aria-label="' . esc_attr( $args['aria_label'] ) . '" ';
        } else {
            /*
             * If there's no custom aria-label, we can set a default here. At the
             * moment it's empty as there's uncertainty about what the default should be.
             */
            $aria_label = '';
        }

        if ( 'html5' === $format ) {
            $form = '<form role="search" ' . $aria_label . 'method="get" class="search-form" action="' . esc_url( home_url( '/' ) ) . '">
                <label>
                    <span class="screen-reader-text">' .
                    /* translators: Hidden accessibility text. */
                    _x( 'Search for:', 'label' ) .
                    '</span>
                    <input type="search" class="search-field" placeholder="' . esc_attr_x( 'Search &hellip;', 'placeholder' ) . '" value="' . get_search_query() . '" name="s" />
                </label>
                <input type="submit" class="search-submit" value="' . esc_attr_x( 'Search', 'submit button' ) . '" />
            </form>';
        } else {
            $form = '<form role="search" ' . $aria_label . 'method="get" id="searchform" class="searchform" action="' . esc_url( home_url( '/' ) ) . '">
                <div>
                    <label class="screen-reader-text" for="s">' .
                    /* translators: Hidden accessibility text. */
                    _x( 'Search for:', 'label' ) .
                    '</label>
                    <input type="text" value="' . get_search_query() . '" name="s" id="s" />
                    <input type="submit" id="searchsubmit" value="' . esc_attr_x( 'Search', 'submit button' ) . '" />
                </div>
            </form>';
        }
    }

    /**
     * Filters the HTML output of the search form.
     *
     * @since 2.7.0
     * @since 5.5.0 The `$args` parameter was added.
     *
     * @param string $form The search form HTML output.
     * @param array  $args The array of arguments for building the search form.
     *                     See get_search_form() for information on accepted arguments.
     */
    $result = apply_filters( 'get_search_form', $form, $args );

    if ( null === $result ) {
        $result = $form;
    }

    if ( $args['echo'] ) {
        echo $result;
    } else {
        return $result;
    }
}

/**
 * Displays the Log In/Out link.
 *
 * Displays a link, which allows users to navigate to the Log In page to log in
 * or log out depending on whether they are currently logged in.
 *
 * @since 1.5.0
 *
 * @param string $redirect Optional path to redirect to on login/logout.
 * @param bool   $display  Default to echo and not return the link.
 * @return void|string Void if `$display` argument is true, log in/out link if `$display` is false.
 */
function wp_loginout( $redirect = '', $display = true ) {
    if ( ! is_user_logged_in() ) {
        $link = '<a href="' . esc_url( wp_login_url( $redirect ) ) . '">' . __( 'Log in' ) . '</a>';
    } else {
        $link = '<a href="' . esc_url( wp_logout_url( $redirect ) ) . '">' . __( 'Log out' ) . '</a>';
    }

    if ( $display ) {
        /**
         * Filters the HTML output for the Log In/Log Out link.
         *
         * @since 1.5.0
         *
         * @param string $link The HTML link content.
         */
        echo apply_filters( 'loginout', $link );
    } else {
        /** This filter is documented in wp-includes/general-template.php */
        return apply_filters( 'loginout', $link );
    }
}

/**
 * Retrieves the logout URL.
 *
 * Returns the URL that allows the user to log out of the site.
 *
 * @since 2.7.0
 *
 * @param string $redirect Path to redirect to on logout.
 * @return string The logout URL. Note: HTML-encoded via esc_html() in wp_nonce_url().
 */
function wp_logout_url( $redirect = '' ) {
    $args = array();
    if ( ! empty( $redirect ) ) {
        $args['redirect_to'] = urlencode( $redirect );
    }

    $logout_url = add_query_arg( $args, site_url( 'wp-login.php?action=logout', 'login' ) );
    $logout_url = wp_nonce_url( $logout_url, 'log-out' );

    /**
     * Filters the logout URL.
     *
     * @since 2.8.0
     *
     * @param string $logout_url The HTML-encoded logout URL.
     * @param string $redirect   Path to redirect to on logout.
     */
    return apply_filters( 'logout_url', $logout_url, $redirect );
}

/**
 * Retrieves the login URL.
 *
 * @since 2.7.0
 *
 * @param string $redirect     Path to redirect to on log in.
 * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present.
 *                             Default false.
 * @return string The login URL. Not HTML-encoded.
 */
function wp_login_url( $redirect = '', $force_reauth = false ) {
    $login_url = site_url( 'wp-login.php', 'login' );

    if ( ! empty( $redirect ) ) {
        $login_url = add_query_arg( 'redirect_to', urlencode( $redirect ), $login_url );
    }

    if ( $force_reauth ) {
        $login_url = add_query_arg( 'reauth', '1', $login_url );
    }

    /**
     * Filters the login URL.
     *
     * @since 2.8.0
     * @since 4.2.0 The `$force_reauth` parameter was added.
     *
     * @param string $login_url    The login URL. Not HTML-encoded.
     * @param string $redirect     The path to redirect to on login, if supplied.
     * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present.
     */
    return apply_filters( 'login_url', $login_url, $redirect, $force_reauth );
}

/**
 * Returns the URL that allows the user to register on the site.
 *
 * @since 3.6.0
 *
 * @return string User registration URL.
 */
function wp_registration_url() {
    /**
     * Filters the user registration URL.
     *
     * @since 3.6.0
     *
     * @param string $register The user registration URL.
     */
    return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) );
}

/**
 * Provides a simple login form for use anywhere within WordPress.
 *
 * The login form HTML is echoed by default. Pass a false value for `$echo` to return it instead.
 *
 * @since 3.0.0
 * @since 6.6.0 Added `required_username` and `required_password` arguments.
 *
 * @param array $args {
 *     Optional. Array of options to control the form output. Default empty array.
 *
 *     @type bool   $echo              Whether to display the login form or return the form HTML code.
 *                                     Default true (echo).
 *     @type string $redirect          URL to redirect to. Must be absolute, as in "https://example.com/mypage/".
 *                                     Default is to redirect back to the request URI.
 *     @type string $form_id           ID attribute value for the form. Default 'loginform'.
 *     @type string $label_username    Label for the username or email address field. Default 'Username or Email Address'.
 *     @type string $label_password    Label for the password field. Default 'Password'.
 *     @type string $label_remember    Label for the remember field. Default 'Remember Me'.
 *     @type string $label_log_in      Label for the submit button. Default 'Log In'.
 *     @type string $id_username       ID attribute value for the username field. Default 'user_login'.
 *     @type string $id_password       ID attribute value for the password field. Default 'user_pass'.
 *     @type string $id_remember       ID attribute value for the remember field. Default 'rememberme'.
 *     @type string $id_submit         ID attribute value for the submit button. Default 'wp-submit'.
 *     @type bool   $remember          Whether to display the "rememberme" checkbox in the form.
 *     @type string $value_username    Default value for the username field. Default empty.
 *     @type bool   $value_remember    Whether the "Remember Me" checkbox should be checked by default.
 *                                     Default false (unchecked).
 *     @type bool   $required_username Whether the username field has the 'required' attribute.
 *                                     Default false.
 *     @type bool   $required_password Whether the password field has the 'required' attribute.
 *                                     Default false.
 *
 * }
 * @return void|string Void if 'echo' argument is true, login form HTML if 'echo' is false.
 */
function wp_login_form( $args = array() ) {
    $defaults = array(
        'echo'              => true,
        // Default 'redirect' value takes the user back to the request URI.
        'redirect'          => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'],
        'form_id'           => 'loginform',
        'label_username'    => __( 'Username or Email Address' ),
        'label_password'    => __( 'Password' ),
        'label_remember'    => __( 'Remember Me' ),
        'label_log_in'      => __( 'Log In' ),
        'id_username'       => 'user_login',
        'id_password'       => 'user_pass',
        'id_remember'       => 'rememberme',
        'id_submit'         => 'wp-submit',
        'remember'          => true,
        'value_username'    => '',
        // Set 'value_remember' to true to default the "Remember me" checkbox to checked.
        'value_remember'    => false,
        // Set 'required_username' to true to add the required attribute to username field.
        'required_username' => false,
        // Set 'required_password' to true to add the required attribute to password field.
        'required_password' => false,
    );

    /**
     * Filters the default login form output arguments.
     *
     * @since 3.0.0
     *
     * @see wp_login_form()
     *
     * @param array $defaults An array of default login form arguments.
     */
    $args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );

    /**
     * Filters content to display at the top of the login form.
     *
     * The filter evaluates just following the opening form tag element.
     *
     * @since 3.0.0
     *
     * @param string $content Content to display. Default empty.
     * @param array  $args    Array of login form arguments.
     */
    $login_form_top = apply_filters( 'login_form_top', '', $args );

    /**
     * Filters content to display in the middle of the login form.
     *
     * The filter evaluates just following the location where the 'login-password'
     * field is displayed.
     *
     * @since 3.0.0
     *
     * @param string $content Content to display. Default empty.
     * @param array  $args    Array of login form arguments.
     */
    $login_form_middle = apply_filters( 'login_form_middle', '', $args );

    /**
     * Filters content to display at the bottom of the login form.
     *
     * The filter evaluates just preceding the closing form tag element.
     *
     * @since 3.0.0
     *
     * @param string $content Content to display. Default empty.
     * @param array  $args    Array of login form arguments.
     */
    $login_form_bottom = apply_filters( 'login_form_bottom', '', $args );

    $direction_style = is_rtl() ? ' style="direction: ltr;"' : '';

    $form =
        sprintf(
            '<form name="%1$s" id="%1$s" action="%2$s" method="post">',
            esc_attr( $args['form_id'] ),
            esc_url( site_url( 'wp-login.php', 'login_post' ) )
        ) .
        $login_form_top .
        sprintf(
            '<p class="login-username">
                <label for="%1$s">%2$s</label>
                <input type="text" name="log" id="%1$s" autocomplete="username" class="input" value="%3$s" size="20"%4$s%5$s />
            </p>',
            esc_attr( $args['id_username'] ),
            esc_html( $args['label_username'] ),
            esc_attr( $args['value_username'] ),
            ( $args['required_username'] ? ' required="required"' : '' ),
            $direction_style
        ) .
        sprintf(
            '<p class="login-password">
                <label for="%1$s">%2$s</label>
                <input type="password" name="pwd" id="%1$s" autocomplete="current-password" spellcheck="false" class="input" value="" size="20"%3$s%4$s />
            </p>',
            esc_attr( $args['id_password'] ),
            esc_html( $args['label_password'] ),
            ( $args['required_password'] ? ' required="required"' : '' ),
            $direction_style
        ) .
        $login_form_middle .
        ( $args['remember'] ?
            sprintf(
                '<p class="login-remember"><label><input name="rememberme" type="checkbox" id="%1$s" value="forever"%2$s /> %3$s</label></p>',
                esc_attr( $args['id_remember'] ),
                ( $args['value_remember'] ? ' checked="checked"' : '' ),
                esc_html( $args['label_remember'] )
            ) : ''
        ) .
        sprintf(
            '<p class="login-submit">
                <input type="submit" name="wp-submit" id="%1$s" class="button button-primary" value="%2$s" />
                <input type="hidden" name="redirect_to" value="%3$s" />
            </p>',
            esc_attr( $args['id_submit'] ),
            esc_attr( $args['label_log_in'] ),
            esc_url( $args['redirect'] )
        ) .
        $login_form_bottom .
        '</form>';

    if ( $args['echo'] ) {
        echo $form;
    } else {
        return $form;
    }
}

/**
 * Returns the URL that allows the user to reset the lost password.
 *
 * @since 2.8.0
 *
 * @param string $redirect Path to redirect to on login.
 * @return string Lost password URL.
 */
function wp_lostpassword_url( $redirect = '' ) {
    $args = array(
        'action' => 'lostpassword',
    );

    if ( ! empty( $redirect ) ) {
        $args['redirect_to'] = urlencode( $redirect );
    }

    if ( is_multisite() ) {
        $blog_details  = get_site();
        $wp_login_path = $blog_details->path . 'wp-login.php';
    } else {
        $wp_login_path = 'wp-login.php';
    }

    $lostpassword_url = add_query_arg( $args, network_site_url( $wp_login_path, 'login' ) );

    /**
     * Filters the Lost Password URL.
     *
     * @since 2.8.0
     *
     * @param string $lostpassword_url The lost password page URL.
     * @param string $redirect         The path to redirect to on login.
     */
    return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );
}

/**
 * Displays the Registration or Admin link.
 *
 * Display a link which allows the user to navigate to the registration page if
 * not logged in and registration is enabled or to the dashboard if logged in.
 *
 * @since 1.5.0
 *
 * @param string $before  Text to output before the link. Default `<li>`.
 * @param string $after   Text to output after the link. Default `</li>`.
 * @param bool   $display Default to echo and not return the link.
 * @return void|string Void if `$display` argument is true, registration or admin link
 *                     if `$display` is false.
 */
function wp_register( $before = '<li>', $after = '</li>', $display = true ) {
    if ( ! is_user_logged_in() ) {
        if ( get_option( 'users_can_register' ) ) {
            $link = $before . '<a href="' . esc_url( wp_registration_url() ) . '">' . __( 'Register' ) . '</a>' . $after;
        } else {
            $link = '';
        }
    } elseif ( current_user_can( 'read' ) ) {
        $link = $before . '<a href="' . admin_url() . '">' . __( 'Site Admin' ) . '</a>' . $after;
    } else {
        $link = '';
    }

    /**
     * Filters the HTML link to the Registration or Admin page.
     *
     * Users are sent to the admin page if logged-in, or the registration page
     * if enabled and logged-out.
     *
     * @since 1.5.0
     *
     * @param string $link The HTML code for the link to the Registration or Admin page.
     */
    $link = apply_filters( 'register', $link );

    if ( $display ) {
        echo $link;
    } else {
        return $link;
    }
}

/**
 * Theme container function for the 'wp_meta' action.
 *
 * The {@see 'wp_meta'} action can have several purposes, depending on how you use it,
 * but one purpose might have been to allow for theme switching.
 *
 * @since 1.5.0
 *
 * @link https://core.trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.
 */
function wp_meta() {
    /**
     * Fires before displaying echoed content in the sidebar.
     *
     * @since 1.5.0
     */
    do_action( 'wp_meta' );
}

/**
 * Displays information about the current site.
 *
 * @since 0.71
 *
 * @see get_bloginfo() For possible `$show` values
 *
 * @param string $show Optional. Site information to display. Default empty.
 */
function bloginfo( $show = '' ) {
    echo get_bloginfo( $show, 'display' );
}

/**
 * Retrieves information about the current site.
 *
 * Possible values for `$show` include:
 *
 * - 'name' - Site title (set in Settings > General)
 * - 'description' - Site tagline (set in Settings > General)
 * - 'wpurl' - The WordPress address (URL) (set in Settings > General)
 * - 'url' - The Site address (URL) (set in Settings > General)
 * - 'admin_email' - Admin email (set in Settings > General)
 * - 'charset' - The "Encoding for pages and feeds"  (set in Settings > Reading)
 * - 'version' - The current WordPress version
 * - 'html_type' - The Content-Type (default: "text/html"). Themes and plugins
 *   can override the default value using the {@see 'pre_option_html_type'} filter
 * - 'text_direction' - The text direction determined by the site's language. is_rtl()
 *   should be used instead
 * - 'language' - Language code for the current site
 * - 'stylesheet_url' - URL to the stylesheet for the active theme. An active child theme
 *   will take precedence over this value
 * - 'stylesheet_directory' - Directory path for the active theme.  An active child theme
 *   will take precedence over this value
 * - 'template_url' / 'template_directory' - URL of the active theme's directory. An active
 *   child theme will NOT take precedence over this value
 * - 'pingback_url' - The pingback XML-RPC file URL (xmlrpc.php)
 * - 'atom_url' - The Atom feed URL (/feed/atom)
 * - 'rdf_url' - The RDF/RSS 1.0 feed URL (/feed/rdf)
 * - 'rss_url' - The RSS 0.92 feed URL (/feed/rss)
 * - 'rss2_url' - The RSS 2.0 feed URL (/feed)
 * - 'comments_atom_url' - The comments Atom feed URL (/comments/feed)
 * - 'comments_rss2_url' - The comments RSS 2.0 feed URL (/comments/feed)
 *
 * Some `$show` values are deprecated and will be removed in future versions.
 * These options will trigger the _deprecated_argument() function.
 *
 * Deprecated arguments include:
 *
 * - 'siteurl' - Use 'url' instead
 * - 'home' - Use 'url' instead
 *
 * @since 0.71
 *
 * @global string $wp_version The WordPress version string.
 *
 * @param string $show   Optional. Site info to retrieve. Default empty (site name).
 * @param string $filter Optional. How to filter what is retrieved. Default 'raw'.
 * @return string Mostly string values, might be empty.
 */
function get_bloginfo( $show = '', $filter = 'raw' ) {
    switch ( $show ) {
        case 'home':    // Deprecated.
        case 'siteurl': // Deprecated.
            _deprecated_argument(
                __FUNCTION__,
                '2.2.0',
                sprintf(
                    /* translators: 1: 'siteurl'/'home' argument, 2: bloginfo() function name, 3: 'url' argument. */
                    __( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s option instead.' ),
                    '<code>' . $show . '</code>',
                    '<code>bloginfo()</code>',
                    '<code>url</code>'
                )
            );
            // Intentional fall-through to be handled by the 'url' case.
        case 'url':
            $output = home_url();
            break;
        case 'wpurl':
            $output = site_url();
            break;
        case 'description':
            $output = get_option( 'blogdescription' );
            break;
        case 'rdf_url':
            $output = get_feed_link( 'rdf' );
            break;
        case 'rss_url':
            $output = get_feed_link( 'rss' );
            break;
        case 'rss2_url':
            $output = get_feed_link( 'rss2' );
            break;
        case 'atom_url':
            $output = get_feed_link( 'atom' );
            break;
        case 'comments_atom_url':
            $output = get_feed_link( 'comments_atom' );
            break;
        case 'comments_rss2_url':
            $output = get_feed_link( 'comments_rss2' );
            break;
        case 'pingback_url':
            $output = site_url( 'xmlrpc.php' );
            break;
        case 'stylesheet_url':
            $output = get_stylesheet_uri();
            break;
        case 'stylesheet_directory':
            $output = get_stylesheet_directory_uri();
            break;
        case 'template_directory':
        case 'template_url':
            $output = get_template_directory_uri();
            break;
        case 'admin_email':
            $output = get_option( 'admin_email' );
            break;
        case 'charset':
            $output = get_option( 'blog_charset' );
            if ( '' === $output ) {
                $output = 'UTF-8';
            }
            break;
        case 'html_type':
            $output = get_option( 'html_type' );
            break;
        case 'version':
            global $wp_version;
            $output = $wp_version;
            break;
        case 'language':
            /*
             * translators: Translate this to the correct language tag for your locale,
             * see https://www.w3.org/International/articles/language-tags/ for reference.
             * Do not translate into your own language.
             */
            $output = __( 'html_lang_attribute' );
            if ( 'html_lang_attribute' === $output || preg_match( '/[^a-zA-Z0-9-]/', $output ) ) {
                $output = determine_locale();
                $output = str_replace( '_', '-', $output );
            }
            break;
        case 'text_direction':
            _deprecated_argument(
                __FUNCTION__,
                '2.2.0',
                sprintf(
                    /* translators: 1: 'text_direction' argument, 2: bloginfo() function name, 3: is_rtl() function name. */
                    __( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s function instead.' ),
                    '<code>' . $show . '</code>',
                    '<code>bloginfo()</code>',
                    '<code>is_rtl()</code>'
                )
            );
            if ( function_exists( 'is_rtl' ) ) {
                $output = is_rtl() ? 'rtl' : 'ltr';
            } else {
                $output = 'ltr';
            }
            break;
        case 'name':
        default:
            $output = get_option( 'blogname' );
            break;
    }

    if ( 'display' === $filter ) {
        if (
            str_contains( $show, 'url' )
            || str_contains( $show, 'directory' )
            || str_contains( $show, 'home' )
        ) {
            /**
             * Filters the URL returned by get_bloginfo().
             *
             * @since 2.0.5
             *
             * @param string $output The URL returned by bloginfo().
             * @param string $show   Type of information requested.
             */
            $output = apply_filters( 'bloginfo_url', $output, $show );
        } else {
            /**
             * Filters the site information returned by get_bloginfo().
             *
             * @since 0.71
             *
             * @param mixed  $output The requested non-URL site information.
             * @param string $show   Type of information requested.
             */
            $output = apply_filters( 'bloginfo', $output, $show );
        }
    }

    return $output;
}

/**
 * Returns the Site Icon URL.
 *
 * @since 4.3.0
 *
 * @param int    $size    Optional. Size of the site icon. Default 512 (pixels).
 * @param string $url     Optional. Fallback url if no site icon is found. Default empty.
 * @param int    $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
 * @return string Site Icon URL.
 */
function get_site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
    $switched_blog = false;

    if ( is_multisite() && ! empty( $blog_id ) && get_current_blog_id() !== (int) $blog_id ) {
        switch_to_blog( $blog_id );
        $switched_blog = true;
    }

    $site_icon_id = (int) get_option( 'site_icon' );

    if ( $site_icon_id ) {
        if ( $size >= 512 ) {
            $size_data = 'full';
        } else {
            $size_data = array( $size, $size );
        }
        $url = wp_get_attachment_image_url( $site_icon_id, $size_data );
    }

    if ( $switched_blog ) {
        restore_current_blog();
    }

    /**
     * Filters the site icon URL.
     *
     * @since 4.4.0
     *
     * @param string $url     Site icon URL.
     * @param int    $size    Size of the site icon.
     * @param int    $blog_id ID of the blog to get the site icon for.
     */
    return apply_filters( 'get_site_icon_url', $url, $size, $blog_id );
}

/**
 * Displays the Site Icon URL.
 *
 * @since 4.3.0
 *
 * @param int    $size    Optional. Size of the site icon. Default 512 (pixels).
 * @param string $url     Optional. Fallback url if no site icon is found. Default empty.
 * @param int    $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
 */
function site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
    echo esc_url( get_site_icon_url( $size, $url, $blog_id ) );
}

/**
 * Determines whether the site has a Site Icon.
 *
 * @since 4.3.0
 *
 * @param int $blog_id Optional. ID of the blog in question. Default current blog.
 * @return bool Whether the site has a site icon or not.
 */
function has_site_icon( $blog_id = 0 ) {
    return (bool) get_site_icon_url( 512, '', $blog_id );
}

/**
 * Determines whether the site has a custom logo.
 *
 * @since 4.5.0
 *
 * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
 * @return bool Whether the site has a custom logo or not.
 */
function has_custom_logo( $blog_id = 0 ) {
    $switched_blog = false;

    if ( is_multisite() && ! empty( $blog_id ) && get_current_blog_id() !== (int) $blog_id ) {
        switch_to_blog( $blog_id );
        $switched_blog = true;
    }

    $custom_logo_id = get_theme_mod( 'custom_logo' );
    $is_image       = ( $custom_logo_id ) ? wp_attachment_is_image( $custom_logo_id ) : false;

    if ( $switched_blog ) {
        restore_current_blog();
    }

    return $is_image;
}

/**
 * Returns a custom logo, linked to home unless the theme supports removing the link on the home page.
 *
 * @since 4.5.0
 * @since 5.5.0 Added option to remove the link on the home page with `unlink-homepage-logo` theme support
 *              for the `custom-logo` theme feature.
 * @since 5.5.1 Disabled lazy-loading by default.
 *
 * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
 * @return string Custom logo markup.
 */
function get_custom_logo( $blog_id = 0 ) {
    $html          = '';
    $switched_blog = false;

    if ( is_multisite() && ! empty( $blog_id ) && get_current_blog_id() !== (int) $blog_id ) {
        switch_to_blog( $blog_id );
        $switched_blog = true;
    }

    // We have a logo. Logo is go.
    if ( has_custom_logo() ) {
        $custom_logo_id   = get_theme_mod( 'custom_logo' );
        $custom_logo_attr = array(
            'class'   => 'custom-logo',
            'loading' => false,
        );

        $unlink_homepage_logo = (bool) get_theme_support( 'custom-logo', 'unlink-homepage-logo' );

        if ( $unlink_homepage_logo && is_front_page() && ! is_paged() ) {
            /*
             * If on the home page, set the logo alt attribute to an empty string,
             * as the image is decorative and doesn't need its purpose to be described.
             */
            $custom_logo_attr['alt'] = '';
        } else {
            /*
             * If the logo alt attribute is empty, get the site title and explicitly pass it
             * to the attributes used by wp_get_attachment_image().
             */
            $image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
            if ( empty( $image_alt ) ) {
                $custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
            }
        }

        /**
         * Filters the list of custom logo image attributes.
         *
         * @since 5.5.0
         *
         * @param array $custom_logo_attr Custom logo image attributes.
         * @param int   $custom_logo_id   Custom logo attachment ID.
         * @param int   $blog_id          ID of the blog to get the custom logo for.
         */
        $custom_logo_attr = apply_filters( 'get_custom_logo_image_attributes', $custom_logo_attr, $custom_logo_id, $blog_id );

        /*
         * If the alt attribute is not empty, there's no need to explicitly pass it
         * because wp_get_attachment_image() already adds the alt attribute.
         */
        $image = wp_get_attachment_image( $custom_logo_id, 'full', false, $custom_logo_attr );

        // Check that we have a proper HTML img element.
        if ( $image ) {

            if ( $unlink_homepage_logo && is_front_page() && ! is_paged() ) {
                // If on the home page, don't link the logo to home.
                $html = sprintf(
                    '<span class="custom-logo-link">%1$s</span>',
                    $image
                );
            } else {
                $aria_current = ! is_paged() && ( is_front_page() || is_home() && ( (int) get_option( 'page_for_posts' ) !== get_queried_object_id() ) ) ? ' aria-current="page"' : '';

                $html = sprintf(
                    '<a href="%1$s" class="custom-logo-link" rel="home"%2$s>%3$s</a>',
                    esc_url( home_url( '/' ) ),
                    $aria_current,
                    $image
                );
            }
        }
    } elseif ( is_customize_preview() ) {
        // If no logo is set but we're in the Customizer, leave a placeholder (needed for the live preview).
        $html = sprintf(
            '<a href="%1$s" class="custom-logo-link" style="display:none;"><img class="custom-logo" alt="" /></a>',
            esc_url( home_url( '/' ) )
        );
    }

    if ( $switched_blog ) {
        restore_current_blog();
    }

    /**
     * Filters the custom logo output.
     *
     * @since 4.5.0
     * @since 4.6.0 Added the `$blog_id` parameter.
     *
     * @param string $html    Custom logo HTML output.
     * @param int    $blog_id ID of the blog to get the custom logo for.
     */
    return apply_filters( 'get_custom_logo', $html, $blog_id );
}

/**
 * Displays a custom logo, linked to home unless the theme supports removing the link on the home page.
 *
 * @since 4.5.0
 *
 * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
 */
function the_custom_logo( $blog_id = 0 ) {
    echo get_custom_logo( $blog_id );
}

/**
 * Returns document title for the current page.
 *
 * @since 4.4.0
 *
 * @global int $page  Page number of a single post.
 * @global int $paged Page number of a list of posts.
 *
 * @return string Tag with the document title.
 */
function wp_get_document_title() {

    /**
     * Filters the document title before it is generated.
     *
     * Passing a non-empty value will short-circuit wp_get_document_title(),
     * returning that value instead.
     *
     * @since 4.4.0
     *
     * @param string $title The document title. Default empty string.
     */
    $title = apply_filters( 'pre_get_document_title', '' );
    if ( ! empty( $title ) ) {
        return $title;
    }

    global $page, $paged;

    $title = array(
        'title' => '',
    );

    // If it's a 404 page, use a "Page not found" title.
    if ( is_404() ) {
        $title['title'] = __( 'Page not found' );

        // If it's a search, use a dynamic search results title.
    } elseif ( is_search() ) {
        /* translators: %s: Search query. */
        $title['title'] = sprintf( __( 'Search Results for &#8220;%s&#8221;' ), get_search_query() );

        // If on the front page, use the site title.
    } elseif ( is_front_page() ) {
        $title['title'] = get_bloginfo( 'name', 'display' );

        // If on a post type archive, use the post type archive title.
    } elseif ( is_post_type_archive() ) {
        $title['title'] = post_type_archive_title( '', false );

        // If on a taxonomy archive, use the term title.
    } elseif ( is_tax() ) {
        $title['title'] = single_term_title( '', false );

        /*
        * If we're on the blog page that is not the homepage
        * or a single post of any post type, use the post title.
        */
    } elseif ( is_home() || is_singular() ) {
        $title['title'] = single_post_title( '', false );

        // If on a category or tag archive, use the term title.
    } elseif ( is_category() || is_tag() ) {
        $title['title'] = single_term_title( '', false );

        // If on an author archive, use the author's display name.
    } elseif ( is_author() && get_queried_object() ) {
        $author         = get_queried_object();
        $title['title'] = $author->display_name;

        // If it's a date archive, use the date as the title.
    } elseif ( is_year() ) {
        $title['title'] = get_the_date( _x( 'Y', 'yearly archives date format' ) );

    } elseif ( is_month() ) {
        $title['title'] = get_the_date( _x( 'F Y', 'monthly archives date format' ) );

    } elseif ( is_day() ) {
        $title['title'] = get_the_date();
    }

    // Add a page number if necessary.
    if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
        /* translators: %s: Page number. */
        $title['page'] = sprintf( __( 'Page %s' ), max( $paged, $page ) );
    }

    // Append the description or site title to give context.
    if ( is_front_page() ) {
        $title['tagline'] = get_bloginfo( 'description', 'display' );
    } else {
        $title['site'] = get_bloginfo( 'name', 'display' );
    }

    /**
     * Filters the separator for the document title.
     *
     * @since 4.4.0
     *
     * @param string $sep Document title separator. Default '-'.
     */
    $sep = apply_filters( 'document_title_separator', '-' );

    /**
     * Filters the parts of the document title.
     *
     * @since 4.4.0
     *
     * @param array $title {
     *     The document title parts.
     *
     *     @type string $title   Title of the viewed page.
     *     @type string $page    Optional. Page number if paginated.
     *     @type string $tagline Optional. Site description when on home page.
     *     @type string $site    Optional. Site title when not on home page.
     * }
     */
    $title = apply_filters( 'document_title_parts', $title );

    $title = implode( " $sep ", array_filter( $title ) );

    /**
     * Filters the document title.
     *
     * @since 5.8.0
     *
     * @param string $title Document title.
     */
    $title = apply_filters( 'document_title', $title );

    return $title;
}

/**
 * Displays title tag with content.
 *
 * @since 4.1.0
 * @since 4.4.0 Improved title output replaced `wp_title()`.
 * @access private
 */
function _wp_render_title_tag() {
    if ( ! current_theme_supports( 'title-tag' ) ) {
        return;
    }

    echo '<title>' . wp_get_document_title() . '</title>' . "\n";
}

/**
 * Displays or retrieves page title for all areas of blog.
 *
 * By default, the page title will display the separator before the page title,
 * so that the blog title will be before the page title. This is not good for
 * title display, since the blog title shows up on most tabs and not what is
 * important, which is the page that the user is looking at.
 *
 * There are also SEO benefits to having the blog title after or to the 'right'
 * of the page title. However, it is mostly common sense to have the blog title
 * to the right with most browsers supporting tabs. You can achieve this by
 * using the seplocation parameter and setting the value to 'right'. This change
 * was introduced around 2.5.0, in case backward compatibility of themes is
 * important.
 *
 * @since 1.0.0
 *
 * @global WP_Locale $wp_locale WordPress date and time locale object.
 *
 * @param string $sep         Optional. How to separate the various items within the page title.
 *                            Default '&raquo;'.
 * @param bool   $display     Optional. Whether to display or retrieve title. Default true.
 * @param string $seplocation Optional. Location of the separator (either 'left' or 'right').
 * @return string|null String when `$display` is false, null otherwise.
 */
function wp_title( $sep = '&raquo;', $display = true, $seplocation = '' ) {
    global $wp_locale;

    $m        = get_query_var( 'm' );
    $year     = get_query_var( 'year' );
    $monthnum = get_query_var( 'monthnum' );
    $day      = get_query_var( 'day' );
    $search   = get_query_var( 's' );
    $title    = '';

    $t_sep = '%WP_TITLE_SEP%'; // Temporary separator, for accurate flipping, if necessary.

    // If there is a post.
    if ( is_single() || ( is_home() && ! is_front_page() ) || ( is_page() && ! is_front_page() ) ) {
        $title = single_post_title( '', false );
    }

    // If there's a post type archive.
    if ( is_post_type_archive() ) {
        $post_type = get_query_var( 'post_type' );
        if ( is_array( $post_type ) ) {
            $post_type = reset( $post_type );
        }
        $post_type_object = get_post_type_object( $post_type );
        if ( ! $post_type_object->has_archive ) {
            $title = post_type_archive_title( '', false );
        }
    }

    // If there's a category or tag.
    if ( is_category() || is_tag() ) {
        $title = single_term_title( '', false );
    }

    // If there's a taxonomy.
    if ( is_tax() ) {
        $term = get_queried_object();
        if ( $term ) {
            $tax   = get_taxonomy( $term->taxonomy );
            $title = single_term_title( $tax->labels->name . $t_sep, false );
        }
    }

    // If there's an author.
    if ( is_author() && ! is_post_type_archive() ) {
        $author = get_queried_object();
        if ( $author ) {
            $title = $author->display_name;
        }
    }

    // Post type archives with has_archive should override terms.
    if ( is_post_type_archive() && $post_type_object->has_archive ) {
        $title = post_type_archive_title( '', false );
    }

    // If there's a month.
    if ( is_archive() && ! empty( $m ) ) {
        $my_year  = substr( $m, 0, 4 );
        $my_month = substr( $m, 4, 2 );
        $my_day   = (int) substr( $m, 6, 2 );
        $title    = $my_year .
            ( $my_month ? $t_sep . $wp_locale->get_month( $my_month ) : '' ) .
            ( $my_day ? $t_sep . $my_day : '' );
    }

    // If there's a year.
    if ( is_archive() && ! empty( $year ) ) {
        $title = $year;
        if ( ! empty( $monthnum ) ) {
            $title .= $t_sep . $wp_locale->get_month( $monthnum );
        }
        if ( ! empty( $day ) ) {
            $title .= $t_sep . zeroise( $day, 2 );
        }
    }

    // If it's a search.
    if ( is_search() ) {
        /* translators: 1: Separator, 2: Search query. */
        $title = sprintf( __( 'Search Results %1$s %2$s' ), $t_sep, strip_tags( $search ) );
    }

    // If it's a 404 page.
    if ( is_404() ) {
        $title = __( 'Page not found' );
    }

    if ( ! is_string( $title ) ) {
        $title = '';
    }

    $prefix      = '';
    $title_array = array();
    if ( '' !== $title ) {
        $prefix      = " $sep ";
        $title_array = explode( $t_sep, $title );
    }

    /**
     * Filters the parts of the page title.
     *
     * @since 4.0.0
     *
     * @param string[] $title_array Array of parts of the page title.
     */
    $title_array = apply_filters( 'wp_title_parts', $title_array );

    // Determines position of the separator and direction of the breadcrumb.
    if ( 'right' === $seplocation ) { // Separator on right, so reverse the order.
        $title_array = array_reverse( $title_array );
        $title       = implode( " $sep ", $title_array ) . $prefix;
    } else {
        $title = $prefix . implode( " $sep ", $title_array );
    }

    /**
     * Filters the text of the page title.
     *
     * @since 2.0.0
     *
     * @param string $title       Page title.
     * @param string $sep         Title separator.
     * @param string $seplocation Location of the separator (either 'left' or 'right').
     */
    $title = apply_filters( 'wp_title', $title, $sep, $seplocation );

    // Send it out.
    if ( $display ) {
        echo $title;
    } else {
        return $title;
    }
}

/**
 * Displays or retrieves page title for post.
 *
 * This is optimized for single.php template file for displaying the post title.
 *
 * It does not support placing the separator after the title, but by leaving the
 * prefix parameter empty, you can set the title separator manually. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 0.71
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|null Title when retrieving.
 */
function single_post_title( $prefix = '', $display = true ) {
    $_post = get_queried_object();

    if ( ! isset( $_post->post_title ) ) {
        return null;
    }

    /**
     * Filters the page title for a single post.
     *
     * @since 0.71
     *
     * @param string  $_post_title The single post page title.
     * @param WP_Post $_post       The current post.
     */
    $title = apply_filters( 'single_post_title', $_post->post_title, $_post );
    if ( $display ) {
        echo $prefix . $title;
    } else {
        return $prefix . $title;
    }
}

/**
 * Displays or retrieves title for a post type archive.
 *
 * This is optimized for archive.php and archive-{$post_type}.php template files
 * for displaying the title of the post type.
 *
 * @since 3.1.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|null Title when retrieving, null when displaying or on failure.
 */
function post_type_archive_title( $prefix = '', $display = true ) {
    if ( ! is_post_type_archive() ) {
        return null;
    }

    $post_type = get_query_var( 'post_type' );
    if ( is_array( $post_type ) ) {
        $post_type = reset( $post_type );
    }

    $post_type_obj = get_post_type_object( $post_type );

    /**
     * Filters the post type archive title.
     *
     * @since 3.1.0
     *
     * @param string $post_type_name Post type 'name' label.
     * @param string $post_type      Post type.
     */
    $title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type );

    if ( $display ) {
        echo $prefix . $title;
    } else {
        return $prefix . $title;
    }
}

/**
 * Displays or retrieves page title for category archive.
 *
 * Useful for category template files for displaying the category page title.
 * The prefix does not automatically place a space between the prefix, so if
 * there should be a space, the parameter value will need to have it at the end.
 *
 * @since 0.71
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|null Title when retrieving.
 */
function single_cat_title( $prefix = '', $display = true ) {
    return single_term_title( $prefix, $display );
}

/**
 * Displays or retrieves page title for tag post archive.
 *
 * Useful for tag template files for displaying the tag page title. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 2.3.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|null Title when retrieving.
 */
function single_tag_title( $prefix = '', $display = true ) {
    return single_term_title( $prefix, $display );
}

/**
 * Displays or retrieves page title for taxonomy term archive.
 *
 * Useful for taxonomy term template files for displaying the taxonomy term page title.
 * The prefix does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 3.1.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|null Title when retrieving.
 */
function single_term_title( $prefix = '', $display = true ) {
    $term = get_queried_object();

    if ( ! $term ) {
        return null;
    }

    if ( is_category() ) {
        /**
         * Filters the category archive page title.
         *
         * @since 2.0.10
         *
         * @param string $term_name Category name for archive being displayed.
         */
        $term_name = apply_filters( 'single_cat_title', $term->name );
    } elseif ( is_tag() ) {
        /**
         * Filters the tag archive page title.
         *
         * @since 2.3.0
         *
         * @param string $term_name Tag name for archive being displayed.
         */
        $term_name = apply_filters( 'single_tag_title', $term->name );
    } elseif ( is_tax() ) {
        /**
         * Filters the custom taxonomy archive page title.
         *
         * @since 3.1.0
         *
         * @param string $term_name Term name for archive being displayed.
         */
        $term_name = apply_filters( 'single_term_title', $term->name );
    } else {
        return null;
    }

    if ( empty( $term_name ) ) {
        return null;
    }

    if ( $display ) {
        echo $prefix . $term_name;
    } else {
        return $prefix . $term_name;
    }
}

/**
 * Displays or retrieves page title for post archive based on date.
 *
 * Useful for when the template only needs to display the month and year,
 * if either are available. The prefix does not automatically place a space
 * between the prefix, so if there should be a space, the parameter value
 * will need to have it at the end.
 *
 * @since 0.71
 *
 * @global WP_Locale $wp_locale WordPress date and time locale object.
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|false|null False if there's no valid title for the month. Title when retrieving.
 */
function single_month_title( $prefix = '', $display = true ) {
    global $wp_locale;

    $m        = get_query_var( 'm' );
    $year     = get_query_var( 'year' );
    $monthnum = get_query_var( 'monthnum' );

    if ( ! empty( $monthnum ) && ! empty( $year ) ) {
        $my_year  = $year;
        $my_month = $wp_locale->get_month( $monthnum );
    } elseif ( ! empty( $m ) ) {
        $my_year  = substr( $m, 0, 4 );
        $my_month = $wp_locale->get_month( substr( $m, 4, 2 ) );
    }

    if ( empty( $my_month ) ) {
        return false;
    }

    $result = $prefix . $my_month . $prefix . $my_year;

    if ( ! $display ) {
        return $result;
    }
    echo $result;
}

/**
 * Displays the archive title based on the queried object.
 *
 * @since 4.1.0
 *
 * @see get_the_archive_title()
 *
 * @param string $before Optional. Content to prepend to the title. Default empty.
 * @param string $after  Optional. Content to append to the title. Default empty.
 */
function the_archive_title( $before = '', $after = '' ) {
    $title = get_the_archive_title();

    if ( ! empty( $title ) ) {
        echo $before . $title . $after;
    }
}

/**
 * Retrieves the archive title based on the queried object.
 *
 * @since 4.1.0
 * @since 5.5.0 The title part is wrapped in a `<span>` element.
 *
 * @return string Archive title.
 */
function get_the_archive_title() {
    $title  = __( 'Archives' );
    $prefix = '';

    if ( is_category() ) {
        $title  = single_cat_title( '', false );
        $prefix = _x( 'Category:', 'category archive title prefix' );
    } elseif ( is_tag() ) {
        $title  = single_tag_title( '', false );
        $prefix = _x( 'Tag:', 'tag archive title prefix' );
    } elseif ( is_author() ) {
        $title  = get_the_author();
        $prefix = _x( 'Author:', 'author archive title prefix' );
    } elseif ( is_year() ) {
        /* translators: See https://www.php.net/manual/datetime.format.php */
        $title  = get_the_date( _x( 'Y', 'yearly archives date format' ) );
        $prefix = _x( 'Year:', 'date archive title prefix' );
    } elseif ( is_month() ) {
        /* translators: See https://www.php.net/manual/datetime.format.php */
        $title  = get_the_date( _x( 'F Y', 'monthly archives date format' ) );
        $prefix = _x( 'Month:', 'date archive title prefix' );
    } elseif ( is_day() ) {
        /* translators: See https://www.php.net/manual/datetime.format.php */
        $title  = get_the_date( _x( 'F j, Y', 'daily archives date format' ) );
        $prefix = _x( 'Day:', 'date archive title prefix' );
    } elseif ( is_tax( 'post_format' ) ) {
        if ( is_tax( 'post_format', 'post-format-aside' ) ) {
            $title = _x( 'Asides', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {
            $title = _x( 'Galleries', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-image' ) ) {
            $title = _x( 'Images', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-video' ) ) {
            $title = _x( 'Videos', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {
            $title = _x( 'Quotes', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-link' ) ) {
            $title = _x( 'Links', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-status' ) ) {
            $title = _x( 'Statuses', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {
            $title = _x( 'Audio', 'post format archive title' );
        } elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {
            $title = _x( 'Chats', 'post format archive title' );
        }
    } elseif ( is_post_type_archive() ) {
        $title  = post_type_archive_title( '', false );
        $prefix = _x( 'Archives:', 'post type archive title prefix' );
    } elseif ( is_tax() ) {
        $queried_object = get_queried_object();
        if ( $queried_object ) {
            $tax    = get_taxonomy( $queried_object->taxonomy );
            $title  = single_term_title( '', false );
            $prefix = sprintf(
                /* translators: %s: Taxonomy singular name. */
                _x( '%s:', 'taxonomy term archive title prefix' ),
                $tax->labels->singular_name
            );
        }
    }

    $original_title = $title;

    /**
     * Filters the archive title prefix.
     *
     * @since 5.5.0
     *
     * @param string $prefix Archive title prefix.
     */
    $prefix = apply_filters( 'get_the_archive_title_prefix', $prefix );
    if ( $prefix ) {
        $title = sprintf(
            /* translators: 1: Title prefix. 2: Title. */
            _x( '%1$s %2$s', 'archive title' ),
            $prefix,
            '<span>' . $title . '</span>'
        );
    }

    /**
     * Filters the archive title.
     *
     * @since 4.1.0
     * @since 5.5.0 Added the `$prefix` and `$original_title` parameters.
     *
     * @param string $title          Archive title to be displayed.
     * @param string $original_title Archive title without prefix.
     * @param string $prefix         Archive title prefix.
     */
    return apply_filters( 'get_the_archive_title', $title, $original_title, $prefix );
}

/**
 * Displays category, tag, term, or author description.
 *
 * @since 4.1.0
 *
 * @see get_the_archive_description()
 *
 * @param string $before Optional. Content to prepend to the description. Default empty.
 * @param string $after  Optional. Content to append to the description. Default empty.
 */
function the_archive_description( $before = '', $after = '' ) {
    $description = get_the_archive_description();
    if ( $description ) {
        echo $before . $description . $after;
    }
}

/**
 * Retrieves the description for an author, post type, or term archive.
 *
 * @since 4.1.0
 * @since 4.7.0 Added support for author archives.
 * @since 4.9.0 Added support for post type archives.
 *
 * @see term_description()
 *
 * @return string Archive description.
 */
function get_the_archive_description() {
    if ( is_author() ) {
        $description = get_the_author_meta( 'description' );
    } elseif ( is_post_type_archive() ) {
        $description = get_the_post_type_description();
    } else {
        $description = term_description();
    }

    /**
     * Filters the archive description.
     *
     * @since 4.1.0
     *
     * @param string $description Archive description to be displayed.
     */
    return apply_filters( 'get_the_archive_description', $description );
}

/**
 * Retrieves the description for a post type archive.
 *
 * @since 4.9.0
 *
 * @return string The post type description.
 */
function get_the_post_type_description() {
    $post_type = get_query_var( 'post_type' );

    if ( is_array( $post_type ) ) {
        $post_type = reset( $post_type );
    }

    $post_type_obj = get_post_type_object( $post_type );

    // Check if a description is set.
    $description = $post_type_obj->description ?? '';

    /**
     * Filters the description for a post type archive.
     *
     * @since 4.9.0
     *
     * @param string       $description   The post type description.
     * @param WP_Post_Type $post_type_obj The post type object.
     */
    return apply_filters( 'get_the_post_type_description', $description, $post_type_obj );
}

/**
 * Retrieves archive link content based on predefined or custom code.
 *
 * The format can be one of four styles. The 'link' for head element, 'option'
 * for use in the select element, 'html' for use in list (either ol or ul HTML
 * elements). Custom content is also supported using the before and after
 * parameters.
 *
 * The 'link' format uses the `<link>` HTML element with the **archives**
 * relationship. The before and after parameters are not used. The text
 * parameter is used to describe the link.
 *
 * The 'option' format uses the option HTML element for use in select element.
 * The value is the url parameter and the before and after parameters are used
 * between the text description.
 *
 * The 'html' format, which is the default, uses the li HTML element for use in
 * the list HTML elements. The before parameter is before the link and the after
 * parameter is after the closing link.
 *
 * The custom format uses the before parameter before the link ('a' HTML
 * element) and the after parameter after the closing link tag. If the above
 * three values for the format are not used, then custom format is assumed.
 *
 * @since 1.0.0
 * @since 5.2.0 Added the `$selected` parameter.
 *
 * @param string $url      URL to archive.
 * @param string $text     Archive text description.
 * @param string $format   Optional. Can be 'link', 'option', 'html', or custom. Default 'html'.
 * @param string $before   Optional. Content to prepend to the description. Default empty.
 * @param string $after    Optional. Content to append to the description. Default empty.
 * @param bool   $selected Optional. Set to true if the current page is the selected archive page. Default false.
 * @return string HTML link content for archive.
 */
function get_archives_link( $url, $text, $format = 'html', $before = '', $after = '', $selected = false ) {
    $text         = wptexturize( $text );
    $url          = esc_url( $url );
    $aria_current = $selected ? ' aria-current="page"' : '';

    if ( 'link' === $format ) {
        $link_html = "\t<link rel='archives' title='" . esc_attr( $text ) . "' href='$url' />\n";
    } elseif ( 'option' === $format ) {
        $selected_attr = $selected ? " selected='selected'" : '';
        $link_html     = "\t<option value='$url'$selected_attr>$before $text $after</option>\n";
    } elseif ( 'html' === $format ) {
        $link_html = "\t<li>$before<a href='$url'$aria_current>$text</a>$after</li>\n";
    } else { // Custom.
        $link_html = "\t$before<a href='$url'$aria_current>$text</a>$after\n";
    }

    /**
     * Filters the archive link content.
     *
     * @since 2.6.0
     * @since 4.5.0 Added the `$url`, `$text`, `$format`, `$before`, and `$after` parameters.
     * @since 5.2.0 Added the `$selected` parameter.
     *
     * @param string $link_html The archive HTML link content.
     * @param string $url       URL to archive.
     * @param string $text      Archive text description.
     * @param string $format    Link format. Can be 'link', 'option', 'html', or custom.
     * @param string $before    Content to prepend to the description.
     * @param string $after     Content to append to the description.
     * @param bool   $selected  True if the current page is the selected archive.
     */
    return apply_filters( 'get_archives_link', $link_html, $url, $text, $format, $before, $after, $selected );
}

/**
 * Displays archive links based on type and format.
 *
 * @since 1.2.0
 * @since 4.4.0 The `$post_type` argument was added.
 * @since 5.2.0 The `$year`, `$monthnum`, `$day`, and `$w` arguments were added.
 *
 * @see get_archives_link()
 *
 * @global wpdb      $wpdb      WordPress database abstraction object.
 * @global WP_Locale $wp_locale WordPress date and time locale object.
 *
 * @param string|array $args {
 *     Default archive links arguments. Optional.
 *
 *     @type string     $type            Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly',
 *                                       'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha'
 *                                       display the same archive link list as well as post titles instead
 *                                       of displaying dates. The difference between the two is that 'alpha'
 *                                       will order by post title and 'postbypost' will order by post date.
 *                                       Default 'monthly'.
 *     @type string|int $limit           Number of links to limit the query to. Default empty (no limit).
 *     @type string     $format          Format each link should take using the $before and $after args.
 *                                       Accepts 'link' (`<link>` tag), 'option' (`<option>` tag), 'html'
 *                                       (`<li>` tag), or a custom format, which generates a link anchor
 *                                       with $before preceding and $after succeeding. Default 'html'.
 *     @type string     $before          Markup to prepend to the beginning of each link. Default empty.
 *     @type string     $after           Markup to append to the end of each link. Default empty.
 *     @type bool       $show_post_count Whether to display the post count alongside the link. Default false.
 *     @type bool|int   $echo            Whether to echo or return the links list. Default 1|true to echo.
 *     @type string     $order           Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'.
 *                                       Default 'DESC'.
 *     @type string     $post_type       Post type. Default 'post'.
 *     @type string     $year            Year. Default current year.
 *     @type string     $monthnum        Month number. Default current month number.
 *     @type string     $day             Day. Default current day.
 *     @type string     $w               Week. Default current week.
 * }
 * @return void|string Void if 'echo' argument is true, archive links if 'echo' is false.
 */
function wp_get_archives( $args = '' ) {
    global $wpdb, $wp_locale;

    $defaults = array(
        'type'            => 'monthly',
        'limit'           => '',
        'format'          => 'html',
        'before'          => '',
        'after'           => '',
        'show_post_count' => false,
        'echo'            => 1,
        'order'           => 'DESC',
        'post_type'       => 'post',
        'year'            => get_query_var( 'year' ),
        'monthnum'        => get_query_var( 'monthnum' ),
        'day'             => get_query_var( 'day' ),
        'w'               => get_query_var( 'w' ),
    );

    /**
     * Filters the arguments for displaying archive links.
     *
     * @since 7.0.0
     *
     * @see wp_get_archives()
     *
     * @param array<string, string|int|bool> $args Arguments.
     */
    $args = apply_filters( 'wp_get_archives_args', $args );

    $parsed_args = wp_parse_args( $args, $defaults );

    $post_type_object = get_post_type_object( $parsed_args['post_type'] );
    if ( ! is_post_type_viewable( $post_type_object ) ) {
        return;
    }

    $parsed_args['post_type'] = $post_type_object->name;

    if ( '' === $parsed_args['type'] ) {
        $parsed_args['type'] = 'monthly';
    }

    if ( ! empty( $parsed_args['limit'] ) ) {
        $parsed_args['limit'] = absint( $parsed_args['limit'] );
        $parsed_args['limit'] = ' LIMIT ' . $parsed_args['limit'];
    }

    $order = strtoupper( $parsed_args['order'] );
    if ( 'ASC' !== $order ) {
        $order = 'DESC';
    }

    // This is what will separate dates on weekly archive links.
    $archive_week_separator = '&#8211;';

    $sql_where = $wpdb->prepare( "WHERE post_type = %s AND post_status = 'publish'", $parsed_args['post_type'] );

    /**
     * Filters the SQL WHERE clause for retrieving archives.
     *
     * @since 2.2.0
     *
     * @param string $sql_where   Portion of SQL query containing the WHERE clause.
     * @param array  $parsed_args An array of default arguments.
     */
    $where = apply_filters( 'getarchives_where', $sql_where, $parsed_args );

    /**
     * Filters the SQL JOIN clause for retrieving archives.
     *
     * @since 2.2.0
     *
     * @param string $sql_join    Portion of SQL query containing JOIN clause.
     * @param array  $parsed_args An array of default arguments.
     */
    $join = apply_filters( 'getarchives_join', '', $parsed_args );

    $output = '';

    $last_changed = wp_cache_get_last_changed( 'posts' );

    $limit = $parsed_args['limit'];

    if ( 'monthly' === $parsed_args['type'] ) {
        $query   = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order $limit";
        $key     = md5( $query );
        $key     = "wp_get_archives:$key";
        $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
        if ( ! $results ) {
            $results = $wpdb->get_results( $query );
            wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
        }
        if ( $results ) {
            $after = $parsed_args['after'];
            foreach ( (array) $results as $result ) {
                $url = get_month_link( $result->year, $result->month );
                if ( 'post' !== $parsed_args['post_type'] ) {
                    $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
                }
                /* translators: 1: Month name, 2: 4-digit year. */
                $text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
                if ( $parsed_args['show_post_count'] ) {
                    $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
                }
                $selected = is_archive() && (string) $parsed_args['year'] === $result->year && (string) $parsed_args['monthnum'] === $result->month;
                $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
            }
        }
    } elseif ( 'yearly' === $parsed_args['type'] ) {
        $query   = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date) ORDER BY post_date $order $limit";
        $key     = md5( $query );
        $key     = "wp_get_archives:$key";
        $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
        if ( ! $results ) {
            $results = $wpdb->get_results( $query );
            wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
        }
        if ( $results ) {
            $after = $parsed_args['after'];
            foreach ( (array) $results as $result ) {
                $url = get_year_link( $result->year );
                if ( 'post' !== $parsed_args['post_type'] ) {
                    $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
                }
                $text = sprintf( '%d', $result->year );
                if ( $parsed_args['show_post_count'] ) {
                    $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
                }
                $selected = is_archive() && (string) $parsed_args['year'] === $result->year;
                $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
            }
        }
    } elseif ( 'daily' === $parsed_args['type'] ) {
        $query   = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date $order $limit";
        $key     = md5( $query );
        $key     = "wp_get_archives:$key";
        $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
        if ( ! $results ) {
            $results = $wpdb->get_results( $query );
            wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
        }
        if ( $results ) {
            $after = $parsed_args['after'];
            foreach ( (array) $results as $result ) {
                $url = get_day_link( $result->year, $result->month, $result->dayofmonth );
                if ( 'post' !== $parsed_args['post_type'] ) {
                    $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
                }
                $date = sprintf( '%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth );
                $text = mysql2date( get_option( 'date_format' ), $date );
                if ( $parsed_args['show_post_count'] ) {
                    $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
                }
                $selected = is_archive() && (string) $parsed_args['year'] === $result->year && (string) $parsed_args['monthnum'] === $result->month && (string) $parsed_args['day'] === $result->dayofmonth;
                $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
            }
        }
    } elseif ( 'weekly' === $parsed_args['type'] ) {
        $week    = _wp_mysql_week( '`post_date`' );
        $query   = "SELECT DISTINCT $week AS `week`, YEAR( `post_date` ) AS `yr`, DATE_FORMAT( `post_date`, '%Y-%m-%d' ) AS `yyyymmdd`, count( `ID` ) AS `posts` FROM `$wpdb->posts` $join $where GROUP BY $week, YEAR( `post_date` ) ORDER BY `post_date` $order $limit";
        $key     = md5( $query );
        $key     = "wp_get_archives:$key";
        $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
        if ( ! $results ) {
            $results = $wpdb->get_results( $query );
            wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
        }
        $arc_w_last = '';
        if ( $results ) {
            $after = $parsed_args['after'];
            foreach ( (array) $results as $result ) {
                if ( $result->week !== $arc_w_last ) {
                    $arc_year       = $result->yr;
                    $arc_w_last     = $result->week;
                    $arc_week       = get_weekstartend( $result->yyyymmdd, get_option( 'start_of_week' ) );
                    $arc_week_start = date_i18n( get_option( 'date_format' ), $arc_week['start'] );
                    $arc_week_end   = date_i18n( get_option( 'date_format' ), $arc_week['end'] );
                    $url            = add_query_arg(
                        array(
                            'm' => $arc_year,
                            'w' => $result->week,
                        ),
                        home_url( '/' )
                    );
                    if ( 'post' !== $parsed_args['post_type'] ) {
                        $url = add_query_arg( 'post_type', $parsed_args['post_type'], $url );
                    }
                    $text = $arc_week_start . $archive_week_separator . $arc_week_end;
                    if ( $parsed_args['show_post_count'] ) {
                        $parsed_args['after'] = '&nbsp;(' . $result->posts . ')' . $after;
                    }
                    $selected = is_archive() && (string) $parsed_args['year'] === $result->yr && (string) $parsed_args['w'] === $result->week;
                    $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
                }
            }
        }
    } elseif ( ( 'postbypost' === $parsed_args['type'] ) || ( 'alpha' === $parsed_args['type'] ) ) {
        $orderby = ( 'alpha' === $parsed_args['type'] ) ? 'post_title ASC ' : 'post_date DESC, ID DESC ';
        $query   = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
        $key     = md5( $query );
        $key     = "wp_get_archives:$key";
        $results = wp_cache_get_salted( $key, 'post-queries', $last_changed );
        if ( ! $results ) {
            $results = $wpdb->get_results( $query );
            wp_cache_set_salted( $key, $results, 'post-queries', $last_changed );
        }
        if ( $results ) {
            foreach ( (array) $results as $result ) {
                if ( '0000-00-00 00:00:00' !== $result->post_date ) {
                    $url = get_permalink( $result );
                    if ( $result->post_title ) {
                        /** This filter is documented in wp-includes/post-template.php */
                        $text = strip_tags( apply_filters( 'the_title', $result->post_title, $result->ID ) );
                    } else {
                        $text = $result->ID;
                    }
                    $selected = get_the_ID() === $result->ID;
                    $output  .= get_archives_link( $url, $text, $parsed_args['format'], $parsed_args['before'], $parsed_args['after'], $selected );
                }
            }
        }
    }

    if ( $parsed_args['echo'] ) {
        echo $output;
    } else {
        return $output;
    }
}

/**
 * Gets number of days since the start of the week.
 *
 * @since 1.5.0
 *
 * @param int $num Number of day.
 * @return float Days since the start of the week.
 */
function calendar_week_mod( $num ) {
    $base = 7;
    return ( $num - $base * floor( $num / $base ) );
}

/**
 * Displays calendar with days that have posts as links.
 *
 * The calendar is cached, which will be retrieved, if it exists. If there are
 * no posts for the month, then it will not be displayed.
 *
 * @since 1.0.0
 * @since 6.8.0 Added the `$args` parameter, with backward compatibility
 *              for the replaced `$initial` and `$display` parameters.
 *
 * @global wpdb      $wpdb      WordPress database abstraction object.
 * @global int       $m
 * @global int       $monthnum
 * @global int       $year
 * @global WP_Locale $wp_locale WordPress date and time locale object.
 * @global array     $posts
 *
 * @param array $args {
 *     Optional. Arguments for the `get_calendar` function.
 *
 *     @type bool   $initial   Whether to use initial calendar names. Default true.
 *     @type bool   $display   Whether to display the calendar output. Default true.
 *     @type string $post_type Optional. Post type. Default 'post'.
 * }
 * @return void|string Void if `$display` argument is true, calendar HTML if `$display` is false.
 */
function get_calendar( $args = array() ) {
    global $wpdb, $m, $monthnum, $year, $wp_locale, $posts;

    $defaults = array(
        'initial'   => true,
        'display'   => true,
        'post_type' => 'post',
    );

    $original_args = func_get_args();
    $args          = array();

    if ( ! empty( $original_args ) ) {
        if ( ! is_array( $original_args[0] ) ) {
            if ( isset( $original_args[0] ) && is_bool( $original_args[0] ) ) {
                $defaults['initial'] = $original_args[0];
            }
            if ( isset( $original_args[1] ) && is_bool( $original_args[1] ) ) {
                $defaults['display'] = $original_args[1];
            }
        } else {
            $args = $original_args[0];
        }
    }

    /**
     * Filter the `get_calendar` function arguments before they are used.
     *
     * @since 6.8.0
     *
     * @param array $args {
     *     Optional. Arguments for the `get_calendar` function.
     *
     *     @type bool   $initial   Whether to use initial calendar names. Default true.
     *     @type bool   $display   Whether to display the calendar output. Default true.
     *     @type string $post_type Optional. Post type. Default 'post'.
     * }
     */
    $args = apply_filters( 'get_calendar_args', wp_parse_args( $args, $defaults ) );

    if ( ! post_type_exists( $args['post_type'] ) ) {
        $args['post_type'] = 'post';
    }

    $w = 0;
    if ( isset( $_GET['w'] ) ) {
        $w = (int) $_GET['w'];
    }

    /*
     * Normalize the cache key.
     *
     * The following ensures the same cache key is used for the same parameter
     * and parameter equivalents. This prevents `post_type > post, initial > true`
     * from generating a different key from the same values in the reverse order.
     *
     * `display` is excluded from the cache key as the cache contains the same
     * HTML regardless of this function's need to echo or return the output.
     *
     * The global values contain data generated by the URL query string variables.
     */
    $cache_args = $args;
    unset( $cache_args['display'] );

    $cache_args['globals'] = array(
        'm'        => $m,
        'monthnum' => $monthnum,
        'year'     => $year,
        'week'     => $w,
    );

    wp_recursive_ksort( $cache_args );
    $key   = md5( serialize( $cache_args ) );
    $cache = wp_cache_get( 'get_calendar', 'calendar' );

    if ( $cache && is_array( $cache ) && isset( $cache[ $key ] ) ) {
        /** This filter is documented in wp-includes/general-template.php */
        $output = apply_filters( 'get_calendar', $cache[ $key ], $args );

        if ( $args['display'] ) {
            echo $output;
            return;
        }

        return $output;
    }

    if ( ! is_array( $cache ) ) {
        $cache = array();
    }

    $post_type = $args['post_type'];

    // Quick check. If we have no posts at all, abort!
    if ( ! $posts ) {
        $gotsome = $wpdb->get_var(
            $wpdb->prepare(
                "SELECT 1 as test
                FROM $wpdb->posts
                WHERE post_type = %s
                AND post_status = 'publish'
                LIMIT 1",
                $post_type
            )
        );

        if ( ! $gotsome ) {
            $cache[ $key ] = '';
            wp_cache_set( 'get_calendar', $cache, 'calendar' );
            return;
        }
    }

    // week_begins = 0 stands for Sunday.
    $week_begins = (int) get_option( 'start_of_week' );

    // Let's figure out when we are.
    if ( ! empty( $monthnum ) && ! empty( $year ) ) {
        $thismonth = (int) $monthnum;
        $thisyear  = (int) $year;
    } elseif ( ! empty( $w ) ) {
        // We need to get the month from MySQL.
        $thisyear = (int) substr( $m, 0, 4 );
        // It seems MySQL's weeks disagree with PHP's.
        $d         = ( ( $w - 1 ) * 7 ) + 6;
        $thismonth = (int) $wpdb->get_var(
            $wpdb->prepare(
                "SELECT DATE_FORMAT((DATE_ADD('%d0101', INTERVAL %d DAY) ), '%%m')",
                $thisyear,
                $d
            )
        );
    } elseif ( ! empty( $m ) ) {
        $thisyear = (int) substr( $m, 0, 4 );
        if ( strlen( $m ) < 6 ) {
            $thismonth = 1;
        } else {
            $thismonth = (int) substr( $m, 4, 2 );
        }
    } else {
        $thisyear  = (int) current_time( 'Y' );
        $thismonth = (int) current_time( 'm' );
    }

    $unixmonth = mktime( 0, 0, 0, $thismonth, 1, $thisyear );
    $last_day  = gmdate( 't', $unixmonth );

    // Get the next and previous month and year with at least one post.
    $previous = $wpdb->get_row(
        $wpdb->prepare(
            "SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
            FROM $wpdb->posts
            WHERE post_date < '%d-%d-01'
            AND post_type = %s AND post_status = 'publish'
            ORDER BY post_date DESC
            LIMIT 1",
            $thisyear,
            zeroise( $thismonth, 2 ),
            $post_type
        )
    );

    $next = $wpdb->get_row(
        $wpdb->prepare(
            "SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
            FROM $wpdb->posts
            WHERE post_date > '%d-%d-%d 23:59:59'
            AND post_type = %s AND post_status = 'publish'
            ORDER BY post_date ASC
            LIMIT 1",
            $thisyear,
            zeroise( $thismonth, 2 ),
            $last_day,
            $post_type
        )
    );

    /* translators: Calendar caption: 1: Month name, 2: 4-digit year. */
    $calendar_caption = _x( '%1$s %2$s', 'calendar caption' );
    $calendar_output  = '<table id="wp-calendar" class="wp-calendar-table">
    <caption>' . sprintf(
        $calendar_caption,
        $wp_locale->get_month( $thismonth ),
        gmdate( 'Y', $unixmonth )
    ) . '</caption>
    <thead>
    <tr>';

    $myweek = array();

    for ( $wdcount = 0; $wdcount <= 6; $wdcount++ ) {
        $myweek[] = $wp_locale->get_weekday( ( $wdcount + $week_begins ) % 7 );
    }

    foreach ( $myweek as $wd ) {
        $day_name         = $args['initial'] ? $wp_locale->get_weekday_initial( $wd ) : $wp_locale->get_weekday_abbrev( $wd );
        $wd               = esc_attr( $wd );
        $calendar_output .= "\n\t\t<th scope=\"col\" aria-label=\"$wd\">$day_name</th>";
    }

    $calendar_output .= '
    </tr>
    </thead>
    <tbody>
    <tr>';

    $daywithpost = array();

    // Get days with posts.
    $dayswithposts = $wpdb->get_results(
        $wpdb->prepare(
            "SELECT DISTINCT DAYOFMONTH(post_date)
            FROM $wpdb->posts WHERE post_date >= '%d-%d-01 00:00:00'
            AND post_type = %s AND post_status = 'publish'
            AND post_date <= '%d-%d-%d 23:59:59'",
            $thisyear,
            zeroise( $thismonth, 2 ),
            $post_type,
            $thisyear,
            zeroise( $thismonth, 2 ),
            $last_day
        ),
        ARRAY_N
    );

    if ( $dayswithposts ) {
        foreach ( (array) $dayswithposts as $daywith ) {
            $daywithpost[] = (int) $daywith[0];
        }
    }

    // See how much we should pad in the beginning.
    $pad = calendar_week_mod( (int) gmdate( 'w', $unixmonth ) - $week_begins );
    if ( $pad > 0 ) {
        $calendar_output .= "\n\t\t" . '<td colspan="' . esc_attr( $pad ) . '" class="pad">&nbsp;</td>';
    }

    $newrow      = false;
    $daysinmonth = (int) gmdate( 't', $unixmonth );

    for ( $day = 1; $day <= $daysinmonth; ++$day ) {
        if ( $newrow ) {
            $calendar_output .= "\n\t</tr>\n\t<tr>\n\t\t";
        }

        $newrow = false;

        if ( (int) current_time( 'j' ) === $day
            && (int) current_time( 'm' ) === $thismonth
            && (int) current_time( 'Y' ) === $thisyear
        ) {
            $calendar_output .= '<td id="today">';
        } else {
            $calendar_output .= '<td>';
        }

        if ( in_array( $day, $daywithpost, true ) ) {
            // Any posts today?
            $date_format = gmdate( _x( 'F j, Y', 'daily archives date format' ), strtotime( "{$thisyear}-{$thismonth}-{$day}" ) );
            /* translators: Post calendar label. %s: Date. */
            $label            = sprintf( __( 'Posts published on %s' ), $date_format );
            $calendar_output .= sprintf(
                '<a href="%s" aria-label="%s">%s</a>',
                get_day_link( $thisyear, $thismonth, $day ),
                esc_attr( $label ),
                $day
            );
        } else {
            $calendar_output .= $day;
        }

        $calendar_output .= '</td>';

        if ( 6 === (int) calendar_week_mod( (int) gmdate( 'w', mktime( 0, 0, 0, $thismonth, $day, $thisyear ) ) - $week_begins ) ) {
            $newrow = true;
        }
    }

    $pad = 7 - calendar_week_mod( (int) gmdate( 'w', mktime( 0, 0, 0, $thismonth, $day, $thisyear ) ) - $week_begins );
    if ( 0 < $pad && $pad < 7 ) {
        $calendar_output .= "\n\t\t" . '<td class="pad" colspan="' . esc_attr( $pad ) . '">&nbsp;</td>';
    }

    $calendar_output .= "\n\t</tr>\n\t</tbody>";

    $calendar_output .= "\n\t</table>";

    $calendar_output .= '<nav aria-label="' . __( 'Previous and next months' ) . '" class="wp-calendar-nav">';

    if ( $previous ) {
        $calendar_output .= "\n\t\t" . sprintf(
            '<span class="wp-calendar-nav-prev"><a href="%1$s">&laquo; %2$s</a></span>',
            get_month_link( $previous->year, $previous->month ),
            $wp_locale->get_month_abbrev( $wp_locale->get_month( $previous->month ) )
        );
    } else {
        $calendar_output .= "\n\t\t" . '<span class="wp-calendar-nav-prev">&nbsp;</span>';
    }

    $calendar_output .= "\n\t\t" . '<span class="pad">&nbsp;</span>';

    if ( $next ) {
        $calendar_output .= "\n\t\t" . sprintf(
            '<span class="wp-calendar-nav-next"><a href="%1$s">%2$s &raquo;</a></span>',
            get_month_link( $next->year, $next->month ),
            $wp_locale->get_month_abbrev( $wp_locale->get_month( $next->month ) )
        );
    } else {
        $calendar_output .= "\n\t\t" . '<span class="wp-calendar-nav-next">&nbsp;</span>';
    }

    $calendar_output .= '
    </nav>';

    $cache[ $key ] = $calendar_output;
    wp_cache_set( 'get_calendar', $cache, 'calendar' );

    /**
     * Filters the HTML calendar output.
     *
     * @since 3.0.0
     * @since 6.8.0 Added the `$args` parameter.
     *
     * @param string $calendar_output HTML output of the calendar.
     * @param array  $args {
     *     Optional. Array of display arguments.
     *
     *     @type bool   $initial   Whether to use initial calendar names. Default true.
     *     @type bool   $display   Whether to display the calendar output. Default true.
     *     @type string $post_type Optional. Post type. Default 'post'.
     * }
     */
    $calendar_output = apply_filters( 'get_calendar', $calendar_output, $args );

    if ( $args['display'] ) {
        echo $calendar_output;
        return;
    }

    return $calendar_output;
}

/**
 * Purges the cached results of get_calendar.
 *
 * @see get_calendar()
 * @since 2.1.0
 */
function delete_get_calendar_cache() {
    wp_cache_delete( 'get_calendar', 'calendar' );
}

/**
 * Displays all of the allowed tags in HTML format with attributes.
 *
 * This is useful for displaying in the comment area, which elements and
 * attributes are supported. As well as any plugins which want to display it.
 *
 * @since 1.0.1
 * @since 4.4.0 No longer used in core.
 *
 * @global array $allowedtags
 *
 * @return string HTML allowed tags entity encoded.
 */
function allowed_tags() {
    global $allowedtags;
    $allowed = '';
    foreach ( (array) $allowedtags as $tag => $attributes ) {
        $allowed .= '<' . $tag;
        if ( 0 < count( $attributes ) ) {
            foreach ( $attributes as $attribute => $limits ) {
                $allowed .= ' ' . $attribute . '=""';
            }
        }
        $allowed .= '> ';
    }
    return htmlentities( $allowed );
}

/***** Date/Time tags */

/**
 * Outputs the date in iso8601 format for xml files.
 *
 * @since 1.0.0
 */
function the_date_xml() {
    echo mysql2date( 'Y-m-d', get_post()->post_date, false );
}

/**
 * Displays or retrieves the date of the post (once per date).
 *
 * Will only output the date if the current post's date is different from the
 * previous one output.
 *
 * i.e. Only one date listing will show per day worth of posts shown in the loop, even if the
 * function is called several times for each post.
 *
 * HTML output can be filtered with {@see 'the_date'}.
 * Date string output can be filtered with {@see 'get_the_date'}.
 *
 * @since 0.71
 *
 * @global string $currentday  The day of the current post in the loop.
 * @global string $previousday The day of the previous post in the loop.
 *
 * @param string $format  Optional. PHP date format. Defaults to the 'date_format' option.
 * @param string $before  Optional. Output before the date. Default empty.
 * @param string $after   Optional. Output after the date. Default empty.
 * @param bool   $display Optional. Whether to echo the date or return it. Default true.
 * @return string|null String if retrieving.
 */
function the_date( $format = '', $before = '', $after = '', $display = true ) {
    global $currentday, $previousday;

    $the_date = '';

    if ( is_new_day() ) {
        $the_date    = $before . get_the_date( $format ) . $after;
        $previousday = $currentday;
    }

    /**
     * Filters the date of the post, for display.
     *
     * @since 0.71
     *
     * @param string $the_date The formatted date string.
     * @param string $format   PHP date format.
     * @param string $before   HTML output before the date.
     * @param string $after    HTML output after the date.
     */
    $the_date = apply_filters( 'the_date', $the_date, $format, $before, $after );

    if ( $display ) {
        echo $the_date;
    } else {
        return $the_date;
    }
}

/**
 * Retrieves the date of the post.
 *
 * Unlike the_date() this function will always return the date.
 * Modify output with the {@see 'get_the_date'} filter.
 *
 * @since 3.0.0
 *
 * @param string           $format Optional. PHP date format. Defaults to the 'date_format' option.
 * @param int|WP_Post|null $post   Optional. Post ID or WP_Post object. Default current post.
 * @return string|int|false Date the current post was written. False on failure.
 */
function get_the_date( $format = '', $post = null ) {
    $post = get_post( $post );

    if ( ! $post ) {
        return false;
    }

    $_format = ! empty( $format ) ? $format : get_option( 'date_format' );

    $the_date = get_post_time( $_format, false, $post, true );

    /**
     * Filters the date of the post.
     *
     * @since 3.0.0
     *
     * @param string|int $the_date Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
     * @param string     $format   PHP date format.
     * @param WP_Post    $post     The post object.
     */
    return apply_filters( 'get_the_date', $the_date, $format, $post );
}

/**
 * Displays the date on which the post was last modified.
 *
 * @since 2.1.0
 *
 * @param string $format  Optional. PHP date format. Defaults to the 'date_format' option.
 * @param string $before  Optional. Output before the date. Default empty.
 * @param string $after   Optional. Output after the date. Default empty.
 * @param bool   $display Optional. Whether to echo the date or return it. Default true.
 * @return string|null String if retrieving.
 */
function the_modified_date( $format = '', $before = '', $after = '', $display = true ) {
    $the_modified_date = $before . get_the_modified_date( $format ) . $after;

    /**
     * Filters the date a post was last modified, for display.
     *
     * @since 2.1.0
     *
     * @param string $the_modified_date The last modified date.
     * @param string $format            PHP date format.
     * @param string $before            HTML output before the date.
     * @param string $after             HTML output after the date.
     */
    $the_modified_date = apply_filters( 'the_modified_date', $the_modified_date, $format, $before, $after );

    if ( $display ) {
        echo $the_modified_date;
    } else {
        return $the_modified_date;
    }
}

/**
 * Retrieves the date on which the post was last modified.
 *
 * @since 2.1.0
 * @since 4.6.0 Added the `$post` parameter.
 *
 * @param string           $format Optional. PHP date format. Defaults to the 'date_format' option.
 * @param int|WP_Post|null $post   Optional. Post ID or WP_Post object. Default current post.
 * @return string|int|false Date the current post was modified. False on failure.
 */
function get_the_modified_date( $format = '', $post = null ) {
    $post = get_post( $post );

    if ( ! $post ) {
        // For backward compatibility, failures go through the filter below.
        $the_time = false;
    } else {
        $_format = ! empty( $format ) ? $format : get_option( 'date_format' );

        $the_time = get_post_modified_time( $_format, false, $post, true );
    }

    /**
     * Filters the date a post was last modified.
     *
     * @since 2.1.0
     * @since 4.6.0 Added the `$post` parameter.
     *
     * @param string|int|false $the_time The formatted date or false if no post is found.
     * @param string           $format   PHP date format.
     * @param WP_Post|null     $post     WP_Post object or null if no post is found.
     */
    return apply_filters( 'get_the_modified_date', $the_time, $format, $post );
}

/**
 * Displays the time of the post.
 *
 * @since 0.71
 *
 * @param string $format Optional. Format to use for retrieving the time the post
 *                       was written. Accepts 'G', 'U', or PHP date format.
 *                       Defaults to the 'time_format' option.
 */
function the_time( $format = '' ) {
    /**
     * Filters the time of the post, for display.
     *
     * @since 0.71
     *
     * @param string $get_the_time The formatted time.
     * @param string $format       Format to use for retrieving the time the post
     *                             was written. Accepts 'G', 'U', or PHP date format.
     */
    echo apply_filters( 'the_time', get_the_time( $format ), $format );
}

/**
 * Retrieves the time of the post.
 *
 * @since 1.5.0
 *
 * @param string           $format Optional. Format to use for retrieving the time the post
 *                                 was written. Accepts 'G', 'U', or PHP date format.
 *                                 Defaults to the 'time_format' option.
 * @param int|WP_Post|null $post   Post ID or post object. Default is global `$post` object.
 * @return string|int|false Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
 *                          False on failure.
 */
function get_the_time( $format = '', $post = null ) {
    $post = get_post( $post );

    if ( ! $post ) {
        return false;
    }

    $_format = ! empty( $format ) ? $format : get_option( 'time_format' );

    $the_time = get_post_time( $_format, false, $post, true );

    /**
     * Filters the time of the post.
     *
     * @since 1.5.0
     *
     * @param string|int $the_time Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
     * @param string     $format   Format to use for retrieving the time the post
     *                             was written. Accepts 'G', 'U', or PHP date format.
     * @param WP_Post    $post     Post object.
     */
    return apply_filters( 'get_the_time', $the_time, $format, $post );
}

/**
 * Retrieves the localized time of the post.
 *
 * @since 2.0.0
 *
 * @param string           $format    Optional. Format to use for retrieving the time the post
 *                                    was written. Accepts 'G', 'U', or PHP date format. Default 'U'.
 * @param bool             $gmt       Optional. Whether to retrieve the GMT time. Default false.
 * @param int|WP_Post|null $post      Post ID or post object. Default is global `$post` object.
 * @param bool             $translate Whether to translate the time string. Default false.
 * @return string|int|false Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
 *                          False on failure.
 */
function get_post_time( $format = 'U', $gmt = false, $post = null, $translate = false ) {
    $post = get_post( $post );

    if ( ! $post ) {
        return false;
    }

    $source   = ( $gmt ) ? 'gmt' : 'local';
    $datetime = get_post_datetime( $post, 'date', $source );

    if ( false === $datetime ) {
        return false;
    }

    if ( 'U' === $format || 'G' === $format ) {
        $time = $datetime->getTimestamp();

        // Returns a sum of timestamp with timezone offset. Ideally should never be used.
        if ( ! $gmt ) {
            $time += $datetime->getOffset();
        }
    } elseif ( $translate ) {
        $time = wp_date( $format, $datetime->getTimestamp(), $gmt ? new DateTimeZone( 'UTC' ) : null );
    } else {
        if ( $gmt ) {
            $datetime = $datetime->setTimezone( new DateTimeZone( 'UTC' ) );
        }

        $time = $datetime->format( $format );
    }

    /**
     * Filters the localized time of the post.
     *
     * @since 2.6.0
     *
     * @param string|int $time   Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
     * @param string     $format Format to use for retrieving the date of the post.
     *                           Accepts 'G', 'U', or PHP date format.
     * @param bool       $gmt    Whether to retrieve the GMT time.
     */
    return apply_filters( 'get_post_time', $time, $format, $gmt );
}

/**
 * Retrieves post published or modified time as a `DateTimeImmutable` object instance.
 *
 * The object will be set to the timezone from WordPress settings.
 *
 * For legacy reasons, this function allows to choose to instantiate from local or UTC time in database.
 * Normally this should make no difference to the result. However, the values might get out of sync in database,
 * typically because of timezone setting changes. The parameter ensures the ability to reproduce backwards
 * compatible behaviors in such cases.
 *
 * @since 5.3.0
 *
 * @param int|WP_Post|null $post   Optional. Post ID or post object. Default is global `$post` object.
 * @param string           $field  Optional. Published or modified time to use from database. Accepts 'date' or 'modified'.
 *                                 Default 'date'.
 * @param string           $source Optional. Local or UTC time to use from database. Accepts 'local' or 'gmt'.
 *                                 Default 'local'.
 * @return DateTimeImmutable|false Time object on success, false on failure.
 */
function get_post_datetime( $post = null, $field = 'date', $source = 'local' ) {
    $post = get_post( $post );

    if ( ! $post ) {
        return false;
    }

    $wp_timezone = wp_timezone();

    if ( 'gmt' === $source ) {
        $time     = ( 'modified' === $field ) ? $post->post_modified_gmt : $post->post_date_gmt;
        $timezone = new DateTimeZone( 'UTC' );
    } else {
        $time     = ( 'modified' === $field ) ? $post->post_modified : $post->post_date;
        $timezone = $wp_timezone;
    }

    if ( empty( $time ) || '0000-00-00 00:00:00' === $time ) {
        return false;
    }

    $datetime = date_create_immutable_from_format( 'Y-m-d H:i:s', $time, $timezone );

    if ( false === $datetime ) {
        return false;
    }

    return $datetime->setTimezone( $wp_timezone );
}

/**
 * Retrieves post published or modified time as a Unix timestamp.
 *
 * Note that this function returns a true Unix timestamp, not summed with timezone offset
 * like older WP functions.
 *
 * @since 5.3.0
 *
 * @param int|WP_Post|null $post  Optional. Post ID or post object. Default is global `$post` object.
 * @param string           $field Optional. Published or modified time to use from database. Accepts 'date' or 'modified'.
 *                                Default 'date'.
 * @return int|false Unix timestamp on success, false on failure.
 */
function get_post_timestamp( $post = null, $field = 'date' ) {
    $datetime = get_post_datetime( $post, $field );

    if ( false === $datetime ) {
        return false;
    }

    return $datetime->getTimestamp();
}

/**
 * Displays the time at which the post was last modified.
 *
 * @since 2.0.0
 *
 * @param string $format Optional. Format to use for retrieving the time the post
 *                       was modified. Accepts 'G', 'U', or PHP date format.
 *                       Defaults to the 'time_format' option.
 */
function the_modified_time( $format = '' ) {
    /**
     * Filters the localized time a post was last modified, for display.
     *
     * @since 2.0.0
     *
     * @param string|false $get_the_modified_time The formatted time or false if no post is found.
     * @param string       $format                Format to use for retrieving the time the post
     *                                            was modified. Accepts 'G', 'U', or PHP date format.
     */
    echo apply_filters( 'the_modified_time', get_the_modified_time( $format ), $format );
}

/**
 * Retrieves the time at which the post was last modified.
 *
 * @since 2.0.0
 * @since 4.6.0 Added the `$post` parameter.
 *
 * @param string           $format Optional. Format to use for retrieving the time the post
 *                                 was modified. Accepts 'G', 'U', or PHP date format.
 *                                 Defaults to the 'time_format' option.
 * @param int|WP_Post|null $post   Optional. Post ID or WP_Post object. Default current post.
 * @return string|int|false Formatted date string or Unix timestamp. False on failure.
 */
function get_the_modified_time( $format = '', $post = null ) {
    $post = get_post( $post );

    if ( ! $post ) {
        // For backward compatibility, failures go through the filter below.
        $the_time = false;
    } else {
        $_format = ! empty( $format ) ? $format : get_option( 'time_format' );

        $the_time = get_post_modified_time( $_format, false, $post, true );
    }

    /**
     * Filters the localized time a post was last modified.
     *
     * @since 2.0.0
     * @since 4.6.0 Added the `$post` parameter.
     *
     * @param string|int|false $the_time The formatted time or false if no post is found.
     * @param string           $format   Format to use for retrieving the time the post
     *                                   was modified. Accepts 'G', 'U', or PHP date format.
     * @param WP_Post|null     $post     WP_Post object or null if no post is found.
     */
    return apply_filters( 'get_the_modified_time', $the_time, $format, $post );
}

/**
 * Retrieves the time at which the post was last modified.
 *
 * @since 2.0.0
 *
 * @param string           $format    Optional. Format to use for retrieving the time the post
 *                                    was modified. Accepts 'G', 'U', or PHP date format. Default 'U'.
 * @param bool             $gmt       Optional. Whether to retrieve the GMT time. Default false.
 * @param int|WP_Post|null $post      Post ID or post object. Default is global `$post` object.
 * @param bool             $translate Whether to translate the time string. Default false.
 * @return string|int|false Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
 *                          False on failure.
 */
function get_post_modified_time( $format = 'U', $gmt = false, $post = null, $translate = false ) {
    $post = get_post( $post );

    if ( ! $post ) {
        return false;
    }

    $source   = ( $gmt ) ? 'gmt' : 'local';
    $datetime = get_post_datetime( $post, 'modified', $source );

    if ( false === $datetime ) {
        return false;
    }

    if ( 'U' === $format || 'G' === $format ) {
        $time = $datetime->getTimestamp();

        // Returns a sum of timestamp with timezone offset. Ideally should never be used.
        if ( ! $gmt ) {
            $time += $datetime->getOffset();
        }
    } elseif ( $translate ) {
        $time = wp_date( $format, $datetime->getTimestamp(), $gmt ? new DateTimeZone( 'UTC' ) : null );
    } else {
        if ( $gmt ) {
            $datetime = $datetime->setTimezone( new DateTimeZone( 'UTC' ) );
        }

        $time = $datetime->format( $format );
    }

    /**
     * Filters the localized time a post was last modified.
     *
     * @since 2.8.0
     *
     * @param string|int $time   Formatted date string or Unix timestamp if `$format` is 'U' or 'G'.
     * @param string     $format Format to use for retrieving the time the post was modified.
     *                           Accepts 'G', 'U', or PHP date format. Default 'U'.
     * @param bool       $gmt    Whether to retrieve the GMT time. Default false.
     */
    return apply_filters( 'get_post_modified_time', $time, $format, $gmt );
}

/**
 * Displays the localized weekday for the post.
 *
 * @since 0.71
 *
 * @global WP_Locale $wp_locale WordPress date and time locale object.
 */
function the_weekday() {
    global $wp_locale;

    $post = get_post();

    if ( ! $post ) {
        return;
    }

    $the_weekday = $wp_locale->get_weekday( get_post_time( 'w', false, $post ) );

    /**
     * Filters the localized weekday of the post, for display.
     *
     * @since 0.71
     *
     * @param string $the_weekday
     */
    echo apply_filters( 'the_weekday', $the_weekday );
}

/**
 * Displays the localized weekday for the post.
 *
 * Will only output the weekday if the current post's weekday is different from
 * the previous one output.
 *
 * @since 0.71
 *
 * @global WP_Locale $wp_locale       WordPress date and time locale object.
 * @global string    $currentday      The day of the current post in the loop.
 * @global string    $previousweekday The day of the previous post in the loop.
 *
 * @param string $before Optional. Output before the date. Default empty.
 * @param string $after  Optional. Output after the date. Default empty.
 */
function the_weekday_date( $before = '', $after = '' ) {
    global $wp_locale, $currentday, $previousweekday;

    $post = get_post();

    if ( ! $post ) {
        return;
    }

    $the_weekday_date = '';

    if ( $currentday !== $previousweekday ) {
        $the_weekday_date .= $before;
        $the_weekday_date .= $wp_locale->get_weekday( get_post_time( 'w', false, $post ) );
        $the_weekday_date .= $after;
        $previousweekday   = $currentday;
    }

    /**
     * Filters the localized weekday of the post, for display.
     *
     * @since 0.71
     *
     * @param string $the_weekday_date The weekday on which the post was written.
     * @param string $before           The HTML to output before the date.
     * @param string $after            The HTML to output after the date.
     */
    echo apply_filters( 'the_weekday_date', $the_weekday_date, $before, $after );
}

/**
 * Fires the wp_head action.
 *
 * See {@see 'wp_head'}.
 *
 * @since 1.2.0
 */
function wp_head() {
    /**
     * Prints scripts or data in the head tag on the front end.
     *
     * @since 1.5.0
     */
    do_action( 'wp_head' );
}

/**
 * Fires the wp_footer action.
 *
 * See {@see 'wp_footer'}.
 *
 * @since 1.5.1
 */
function wp_footer() {
    /**
     * Prints scripts or data before the closing body tag on the front end.
     *
     * @since 1.5.1
     */
    do_action( 'wp_footer' );
}

/**
 * Fires the wp_body_open action.
 *
 * See {@see 'wp_body_open'}.
 *
 * @since 5.2.0
 */
function wp_body_open() {
    /**
     * Triggered after the opening body tag.
     *
     * @since 5.2.0
     */
    do_action( 'wp_body_open' );
}

/**
 * Displays the links to the general feeds.
 *
 * @since 2.8.0
 *
 * @param array $args Optional arguments.
 */
function feed_links( $args = array() ) {
    if ( ! current_theme_supports( 'automatic-feed-links' ) ) {
        return;
    }

    $defaults = array(
        /* translators: Separator between site name and feed type in feed links. */
        'separator' => _x( '&raquo;', 'feed link' ),
        /* translators: 1: Site title, 2: Separator (raquo). */
        'feedtitle' => __( '%1$s %2$s Feed' ),
        /* translators: 1: Site title, 2: Separator (raquo). */
        'comstitle' => __( '%1$s %2$s Comments Feed' ),
    );

    $args = wp_parse_args( $args, $defaults );

    /**
     * Filters the feed links arguments.
     *
     * @since 6.7.0
     *
     * @param array $args An array of feed links arguments.
     */
    $args = apply_filters( 'feed_links_args', $args );

    /**
     * Filters whether to display the posts feed link.
     *
     * @since 4.4.0
     *
     * @param bool $show Whether to display the posts feed link. Default true.
     */
    if ( apply_filters( 'feed_links_show_posts_feed', true ) ) {
        printf(
            '<link rel="alternate" type="%s" title="%s" href="%s" />' . "\n",
            feed_content_type(),
            esc_attr( sprintf( $args['feedtitle'], get_bloginfo( 'name' ), $args['separator'] ) ),
            esc_url( get_feed_link() )
        );
    }

    /**
     * Filters whether to display the comments feed link.
     *
     * @since 4.4.0
     *
     * @param bool $show Whether to display the comments feed link. Default true.
     */
    if ( apply_filters( 'feed_links_show_comments_feed', true ) ) {
        printf(
            '<link rel="alternate" type="%s" title="%s" href="%s" />' . "\n",
            feed_content_type(),
            esc_attr( sprintf( $args['comstitle'], get_bloginfo( 'name' ), $args['separator'] ) ),
            esc_url( get_feed_link( 'comments_' . get_default_feed() ) )
        );
    }
}

/**
 * Displays the links to the extra feeds such as category feeds.
 *
 * @since 2.8.0
 *
 * @param array $args Optional arguments.
 */
function feed_links_extra( $args = array() ) {
    $defaults = array(
        /* translators: Separator between site name and feed type in feed links. */
        'separator'     => _x( '&raquo;', 'feed link' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Post title. */
        'singletitle'   => __( '%1$s %2$s %3$s Comments Feed' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Category name. */
        'cattitle'      => __( '%1$s %2$s %3$s Category Feed' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Tag name. */
        'tagtitle'      => __( '%1$s %2$s %3$s Tag Feed' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Term name, 4: Taxonomy singular name. */
        'taxtitle'      => __( '%1$s %2$s %3$s %4$s Feed' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Author name. */
        'authortitle'   => __( '%1$s %2$s Posts by %3$s Feed' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Search query. */
        'searchtitle'   => __( '%1$s %2$s Search Results for &#8220;%3$s&#8221; Feed' ),
        /* translators: 1: Site name, 2: Separator (raquo), 3: Post type name. */
        'posttypetitle' => __( '%1$s %2$s %3$s Feed' ),
    );

    $args = wp_parse_args( $args, $defaults );

    /**
     * Filters the extra feed links arguments.
     *
     * @since 6.7.0
     *
     * @param array $args An array of extra feed links arguments.
     */
    $args = apply_filters( 'feed_links_extra_args', $args );

    /*
     * The template conditionals are referring to the global query, so the queried object is used rather than
     * depending on a global $post being set.
     */
    $queried_object = get_queried_object();
    if ( is_singular() && $queried_object instanceof WP_Post ) {
        $post = $queried_object;

        /** This filter is documented in wp-includes/general-template.php */
        $show_comments_feed = apply_filters( 'feed_links_show_comments_feed', true );

        /**
         * Filters whether to display the post comments feed link.
         *
         * This filter allows to enable or disable the feed link for a singular post
         * in a way that is independent of {@see 'feed_links_show_comments_feed'}
         * (which controls the global comments feed). The result of that filter
         * is accepted as a parameter.
         *
         * @since 6.1.0
         *
         * @param bool $show_comments_feed Whether to display the post comments feed link. Defaults to
         *                                 the {@see 'feed_links_show_comments_feed'} filter result.
         */
        $show_post_comments_feed = apply_filters( 'feed_links_extra_show_post_comments_feed', $show_comments_feed );

        if ( $show_post_comments_feed && ( comments_open( $post ) || pings_open( $post ) || (int) $post->comment_count > 0 ) ) {
            $title = sprintf(
                $args['singletitle'],
                get_bloginfo( 'name' ),
                $args['separator'],
                the_title_attribute(
                    array(
                        'echo' => false,
                        'post' => $post,
                    )
                )
            );

            $feed_link = get_post_comments_feed_link( $post->ID );

            if ( $feed_link ) {
                $href = $feed_link;
            }
        }
    } elseif ( is_post_type_archive() ) {
        /**
         * Filters whether to display the post type archive feed link.
         *
         * @since 6.1.0
         *
         * @param bool $show Whether to display the post type archive feed link. Default true.
         */
        $show_post_type_archive_feed = apply_filters( 'feed_links_extra_show_post_type_archive_feed', true );

        if ( $show_post_type_archive_feed ) {
            $post_type = get_query_var( 'post_type' );

            if ( is_array( $post_type ) ) {
                $post_type = reset( $post_type );
            }

            $post_type_obj = get_post_type_object( $post_type );

            $title = sprintf(
                $args['posttypetitle'],
                get_bloginfo( 'name' ),
                $args['separator'],
                $post_type_obj->labels->name
            );

            $href = get_post_type_archive_feed_link( $post_type_obj->name );
        }
    } elseif ( is_category() ) {
        /**
         * Filters whether to display the category feed link.
         *
         * @since 6.1.0
         *
         * @param bool $show Whether to display the category feed link. Default true.
         */
        $show_category_feed = apply_filters( 'feed_links_extra_show_category_feed', true );

        if ( $show_category_feed ) {
            $term = get_queried_object();

            if ( $term ) {
                $title = sprintf(
                    $args['cattitle'],
                    get_bloginfo( 'name' ),
                    $args['separator'],
                    $term->name
                );

                $href = get_category_feed_link( $term->term_id );
            }
        }
    } elseif ( is_tag() ) {
        /**
         * Filters whether to display the tag feed link.
         *
         * @since 6.1.0
         *
         * @param bool $show Whether to display the tag feed link. Default true.
         */
        $show_tag_feed = apply_filters( 'feed_links_extra_show_tag_feed', true );

        if ( $show_tag_feed ) {
            $term = get_queried_object();

            if ( $term ) {
                $title = sprintf(
                    $args['tagtitle'],
                    get_bloginfo( 'name' ),
                    $args['separator'],
                    $term->name
                );

                $href = get_tag_feed_link( $term->term_id );
            }
        }
    } elseif ( is_tax() ) {
        /**
         * Filters whether to display the custom taxonomy feed link.
         *
         * @since 6.1.0
         *
         * @param bool $show Whether to display the custom taxonomy feed link. Default true.
         */
        $show_tax_feed = apply_filters( 'feed_links_extra_show_tax_feed', true );

        if ( $show_tax_feed ) {
            $term = get_queried_object();

            if ( $term ) {
                $tax = get_taxonomy( $term->taxonomy );

                $title = sprintf(
                    $args['taxtitle'],
                    get_bloginfo( 'name' ),
                    $args['separator'],
                    $term->name,
                    $tax->labels->singular_name
                );

                $href = get_term_feed_link( $term->term_id, $term->taxonomy );
            }
        }
    } elseif ( is_author() ) {
        /**
         * Filters whether to display the author feed link.
         *
         * @since 6.1.0
         *
         * @param bool $show Whether to display the author feed link. Default true.
         */
        $show_author_feed = apply_filters( 'feed_links_extra_show_author_feed', true );

        if ( $show_author_feed ) {
            $author_id = (int) get_query_var( 'author' );

            $title = sprintf(
                $args['authortitle'],
                get_bloginfo( 'name' ),
                $args['separator'],
                get_the_author_meta( 'display_name', $author_id )
            );

            $href = get_author_feed_link( $author_id );
        }
    } elseif ( is_search() ) {
        /**
         * Filters whether to display the search results feed link.
         *
         * @since 6.1.0
         *
         * @param bool $show Whether to display the search results feed link. Default true.
         */
        $show_search_feed = apply_filters( 'feed_links_extra_show_search_feed', true );

        if ( $show_search_feed ) {
            $title = sprintf(
                $args['searchtitle'],
                get_bloginfo( 'name' ),
                $args['separator'],
                get_search_query( false )
            );

            $href = get_search_feed_link();
        }
    }

    if ( isset( $title ) && isset( $href ) ) {
        printf(
            '<link rel="alternate" type="%s" title="%s" href="%s" />' . "\n",
            feed_content_type(),
            esc_attr( $title ),
            esc_url( $href )
        );
    }
}

/**
 * Displays the link to the Really Simple Discovery service endpoint.
 *
 * @link http://archipelago.phrasewise.com/rsd
 * @since 2.0.0
 */
function rsd_link() {
    printf(
        '<link rel="EditURI" type="application/rsd+xml" title="RSD" href="%s" />' . "\n",
        esc_url( site_url( 'xmlrpc.php?rsd', 'rpc' ) )
    );
}

/**
 * Displays a referrer `strict-origin-when-cross-origin` meta tag.
 *
 * Outputs a referrer `strict-origin-when-cross-origin` meta tag that tells the browser not to send
 * the full URL as a referrer to other sites when cross-origin assets are loaded.
 *
 * Typical usage is as a {@see 'wp_head'} callback:
 *
 *     add_action( 'wp_head', 'wp_strict_cross_origin_referrer' );
 *
 * @since 5.7.0
 */
function wp_strict_cross_origin_referrer() {
    ?>
    <meta name='referrer' content='strict-origin-when-cross-origin' />
    <?php
}

/**
 * Displays site icon meta tags.
 *
 * @since 4.3.0
 *
 * @link https://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon HTML5 specification link icon.
 */
function wp_site_icon() {
    if ( ! has_site_icon() && ! is_customize_preview() ) {
        return;
    }

    $meta_tags = array();
    $icon_32   = get_site_icon_url( 32 );
    if ( empty( $icon_32 ) && is_customize_preview() ) {
        $icon_32 = '/favicon.ico'; // Serve default favicon URL in customizer so element can be updated for preview.
    }
    if ( $icon_32 ) {
        $meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="32x32" />', esc_url( $icon_32 ) );
    }
    $icon_192 = get_site_icon_url( 192 );
    if ( $icon_192 ) {
        $meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="192x192" />', esc_url( $icon_192 ) );
    }
    $icon_180 = get_site_icon_url( 180 );
    if ( $icon_180 ) {
        $meta_tags[] = sprintf( '<link rel="apple-touch-icon" href="%s" />', esc_url( $icon_180 ) );
    }
    $icon_270 = get_site_icon_url( 270 );
    if ( $icon_270 ) {
        $meta_tags[] = sprintf( '<meta name="msapplication-TileImage" content="%s" />', esc_url( $icon_270 ) );
    }

    /**
     * Filters the site icon meta tags, so plugins can add their own.
     *
     * @since 4.3.0
     *
     * @param string[] $meta_tags Array of Site Icon meta tags.
     */
    $meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags );
    $meta_tags = array_filter( $meta_tags );

    foreach ( $meta_tags as $meta_tag ) {
        echo "$meta_tag\n";
    }
}

/**
 * Prints resource hints to browsers for pre-fetching, pre-rendering
 * and pre-connecting to websites.
 *
 * Gives hints to browsers to prefetch specific pages or render them
 * in the background, to perform DNS lookups or to begin the connection
 * handshake (DNS, TCP, TLS) in the background.
 *
 * These performance improving indicators work by using `<link rel"…">`.
 *
 * @since 4.6.0
 */
function wp_resource_hints() {
    $hints = array(
        'dns-prefetch' => wp_dependencies_unique_hosts(),
        'preconnect'   => array(),
        'prefetch'     => array(),
        'prerender'    => array(),
    );

    foreach ( $hints as $relation_type => $urls ) {
        $unique_urls = array();

        /**
         * Filters domains and URLs for resource hints of the given relation type.
         *
         * @since 4.6.0
         * @since 4.7.0 The `$urls` parameter accepts arrays of specific HTML attributes
         *              as its child elements.
         *
         * @param array  $urls {
         *     Array of resources and their attributes, or URLs to print for resource hints.
         *
         *     @type array|string ...$0 {
         *         Array of resource attributes, or a URL string.
         *
         *         @type string $href        URL to include in resource hints. Required.
         *         @type string $as          How the browser should treat the resource
         *                                   (`script`, `style`, `image`, `document`, etc).
         *         @type string $crossorigin Indicates the CORS policy of the specified resource.
         *         @type float  $pr          Expected probability that the resource hint will be used.
         *         @type string $type        Type of the resource (`text/html`, `text/css`, etc).
         *     }
         * }
         * @param string $relation_type The relation type the URLs are printed for. One of
         *                              'dns-prefetch', 'preconnect', 'prefetch', or 'prerender'.
         */
        $urls = apply_filters( 'wp_resource_hints', $urls, $relation_type );

        foreach ( $urls as $key => $url ) {
            $atts = array();

            if ( is_array( $url ) ) {
                if ( isset( $url['href'] ) ) {
                    $atts = $url;
                    $url  = $url['href'];
                } else {
                    continue;
                }
            }

            $url = esc_url( $url, array( 'http', 'https' ) );

            if ( ! $url ) {
                continue;
            }

            if ( isset( $unique_urls[ $url ] ) ) {
                continue;
            }

            if ( in_array( $relation_type, array( 'preconnect', 'dns-prefetch' ), true ) ) {
                $parsed = wp_parse_url( $url );

                if ( empty( $parsed['host'] ) ) {
                    continue;
                }

                if ( 'preconnect' === $relation_type && ! empty( $parsed['scheme'] ) ) {
                    $url = $parsed['scheme'] . '://' . $parsed['host'];
                } else {
                    // Use protocol-relative URLs for dns-prefetch or if scheme is missing.
                    $url = '//' . $parsed['host'];
                }
            }

            $atts['rel']  = $relation_type;
            $atts['href'] = $url;

            $unique_urls[ $url ] = $atts;
        }

        foreach ( $unique_urls as $atts ) {
            $html = '';

            foreach ( $atts as $attr => $value ) {
                if ( ! is_scalar( $value )
                    || ( ! in_array( $attr, array( 'as', 'crossorigin', 'href', 'pr', 'rel', 'type' ), true ) && ! is_numeric( $attr ) )
                ) {

                    continue;
                }

                $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );

                if ( ! is_string( $attr ) ) {
                    $html .= " $value";
                } else {
                    $html .= " $attr='$value'";
                }
            }

            $html = trim( $html );

            echo "<link $html />\n";
        }
    }
}

/**
 * Prints resource preloads directives to browsers.
 *
 * Gives directive to browsers to preload specific resources that website will
 * need very soon, this ensures that they are available earlier and are less
 * likely to block the page's render. Preload directives should not be used for
 * non-render-blocking elements, as then they would compete with the
 * render-blocking ones, slowing down the render.
 *
 * These performance improving indicators work by using `<link rel="preload">`.
 *
 * @link https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types/preload
 * @link https://web.dev/preload-responsive-images/
 *
 * @since 6.1.0
 */
function wp_preload_resources() {
    /**
     * Filters domains and URLs for resource preloads.
     *
     * @since 6.1.0
     * @since 6.6.0 Added the `$fetchpriority` attribute.
     *
     * @param array  $preload_resources {
     *     Array of resources and their attributes, or URLs to print for resource preloads.
     *
     *     @type array ...$0 {
     *         Array of resource attributes.
     *
     *         @type string $href          URL to include in resource preloads. Required.
     *         @type string $as            How the browser should treat the resource
     *                                     (`script`, `style`, `image`, `document`, etc).
     *         @type string $crossorigin   Indicates the CORS policy of the specified resource.
     *         @type string $type          Type of the resource (`text/html`, `text/css`, etc).
     *         @type string $media         Accepts media types or media queries. Allows responsive preloading.
     *         @type string $imagesizes    Responsive source size to the source Set.
     *         @type string $imagesrcset   Responsive image sources to the source set.
     *         @type string $fetchpriority Fetchpriority value for the resource.
     *     }
     * }
     */
    $preload_resources = apply_filters( 'wp_preload_resources', array() );

    if ( ! is_array( $preload_resources ) ) {
        return;
    }

    $unique_resources = array();

    // Parse the complete resource list and extract unique resources.
    foreach ( $preload_resources as $resource ) {
        if ( ! is_array( $resource ) ) {
            continue;
        }

        $attributes = $resource;
        if ( isset( $resource['href'] ) ) {
            $href = $resource['href'];
            if ( isset( $unique_resources[ $href ] ) ) {
                continue;
            }
            $unique_resources[ $href ] = $attributes;
            // Media can use imagesrcset and not href.
        } elseif ( ( 'image' === $resource['as'] ) &&
            ( isset( $resource['imagesrcset'] ) || isset( $resource['imagesizes'] ) )
        ) {
            if ( isset( $unique_resources[ $resource['imagesrcset'] ] ) ) {
                continue;
            }
            $unique_resources[ $resource['imagesrcset'] ] = $attributes;
        } else {
            continue;
        }
    }

    // Build and output the HTML for each unique resource.
    foreach ( $unique_resources as $unique_resource ) {
        $html = '';

        foreach ( $unique_resource as $resource_key => $resource_value ) {
            if ( ! is_scalar( $resource_value ) ) {
                continue;
            }

            // Ignore non-supported attributes.
            $non_supported_attributes = array( 'as', 'crossorigin', 'href', 'imagesrcset', 'imagesizes', 'type', 'media', 'fetchpriority' );
            if ( ! in_array( $resource_key, $non_supported_attributes, true ) && ! is_numeric( $resource_key ) ) {
                continue;
            }

            // imagesrcset only usable when preloading image, ignore otherwise.
            if ( ( 'imagesrcset' === $resource_key ) && ( ! isset( $unique_resource['as'] ) || ( 'image' !== $unique_resource['as'] ) ) ) {
                continue;
            }

            // imagesizes only usable when preloading image and imagesrcset present, ignore otherwise.
            if ( ( 'imagesizes' === $resource_key ) &&
                ( ! isset( $unique_resource['as'] ) || ( 'image' !== $unique_resource['as'] ) || ! isset( $unique_resource['imagesrcset'] ) )
            ) {
                continue;
            }

            $resource_value = ( 'href' === $resource_key ) ? esc_url( $resource_value, array( 'http', 'https' ) ) : esc_attr( $resource_value );

            if ( ! is_string( $resource_key ) ) {
                $html .= " $resource_value";
            } else {
                $html .= " $resource_key='$resource_value'";
            }
        }
        $html = trim( $html );

        printf( "<link rel='preload' %s />\n", $html );
    }
}

/**
 * Retrieves a list of unique hosts of all enqueued scripts and styles.
 *
 * @since 4.6.0
 *
 * @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
 * @global WP_Styles  $wp_styles  The WP_Styles object for printing styles.
 *
 * @return string[] A list of unique hosts of enqueued scripts and styles.
 */
function wp_dependencies_unique_hosts() {
    global $wp_scripts, $wp_styles;

    $unique_hosts = array();

    foreach ( array( $wp_scripts, $wp_styles ) as $dependencies ) {
        if ( $dependencies instanceof WP_Dependencies && ! empty( $dependencies->queue ) ) {
            foreach ( $dependencies->queue as $handle ) {
                if ( ! isset( $dependencies->registered[ $handle ] ) ) {
                    continue;
                }

                /* @var _WP_Dependency $dependency */
                $dependency = $dependencies->registered[ $handle ];
                $parsed     = wp_parse_url( $dependency->src );

                if ( ! empty( $parsed['host'] )
                    && ! in_array( $parsed['host'], $unique_hosts, true ) && $parsed['host'] !== $_SERVER['SERVER_NAME']
                ) {
                    $unique_hosts[] = $parsed['host'];
                }
            }
        }
    }

    return $unique_hosts;
}

/**
 * Determines whether the user can access the visual editor.
 *
 * Checks if the user can access the visual editor and that it's supported by the user's browser.
 *
 * @since 2.0.0
 *
 * @global bool $wp_rich_edit Whether the user can access the visual editor.
 * @global bool $is_gecko     Whether the browser is Gecko-based.
 * @global bool $is_opera     Whether the browser is Opera.
 * @global bool $is_safari    Whether the browser is Safari.
 * @global bool $is_chrome    Whether the browser is Chrome.
 * @global bool $is_IE        Whether the browser is Internet Explorer.
 * @global bool $is_edge      Whether the browser is Microsoft Edge.
 *
 * @return bool True if the user can access the visual editor, false otherwise.
 */
function user_can_richedit() {
    global $wp_rich_edit, $is_gecko, $is_opera, $is_safari, $is_chrome, $is_IE, $is_edge;

    if ( ! isset( $wp_rich_edit ) ) {
        $wp_rich_edit = false;

        if ( 'true' === get_user_option( 'rich_editing' ) || ! is_user_logged_in() ) { // Default to 'true' for logged out users.
            if ( $is_safari ) {
                $wp_rich_edit = ! wp_is_mobile() || ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && (int) $match[1] >= 534 );
            } elseif ( $is_IE ) {
                $wp_rich_edit = str_contains( $_SERVER['HTTP_USER_AGENT'], 'Trident/7.0;' );
            } elseif ( $is_gecko || $is_chrome || $is_edge || ( $is_opera && ! wp_is_mobile() ) ) {
                $wp_rich_edit = true;
            }
        }
    }

    /**
     * Filters whether the user can access the visual editor.
     *
     * @since 2.1.0
     *
     * @param bool $wp_rich_edit Whether the user can access the visual editor.
     */
    return apply_filters( 'user_can_richedit', $wp_rich_edit );
}

/**
 * Finds out which editor should be displayed by default.
 *
 * Works out which of the editors to display as the current editor for a
 * user. The 'html' setting is for the "Code" editor tab.
 *
 * @since 2.5.0
 *
 * @return string Either 'tinymce', 'html', or 'test'
 */
function wp_default_editor() {
    $r = user_can_richedit() ? 'tinymce' : 'html'; // Defaults.
    if ( wp_get_current_user() ) { // Look for cookie.
        $ed = get_user_setting( 'editor', 'tinymce' );
        $r  = ( in_array( $ed, array( 'tinymce', 'html', 'test' ), true ) ) ? $ed : $r;
    }

    /**
     * Filters which editor should be displayed by default.
     *
     * @since 2.5.0
     *
     * @param string $r Which editor should be displayed by default. Either 'tinymce', 'html', or 'test'.
     */
    return apply_filters( 'wp_default_editor', $r );
}

/**
 * Renders an editor.
 *
 * Using this function is the proper way to output all needed components for both TinyMCE and Quicktags.
 * _WP_Editors should not be used directly. See https://core.trac.wordpress.org/ticket/17144.
 *
 * NOTE: Once initialized the TinyMCE editor cannot be safely moved in the DOM. For that reason
 * running wp_editor() inside of a meta box is not a good idea unless only Quicktags is used.
 * On the post edit screen several actions can be used to include additional editors
 * containing TinyMCE: 'edit_page_form', 'edit_form_advanced' and 'dbx_post_sidebar'.
 * See https://core.trac.wordpress.org/ticket/19173 for more information.
 *
 * @see _WP_Editors::editor()
 * @see _WP_Editors::parse_settings()
 * @since 3.3.0
 *
 * @param string $content   Initial content for the editor.
 * @param string $editor_id HTML ID attribute value for the textarea and TinyMCE.
 *                          Should not contain square brackets.
 * @param array  $settings  See _WP_Editors::parse_settings() for description.
 */
function wp_editor( $content, $editor_id, $settings = array() ) {
    if ( ! class_exists( '_WP_Editors', false ) ) {
        require ABSPATH . WPINC . '/class-wp-editor.php';
    }
    _WP_Editors::editor( $content, $editor_id, $settings );
}

/**
 * Outputs the editor scripts, stylesheets, and default settings.
 *
 * The editor can be initialized when needed after page load.
 * See wp.editor.initialize() in wp-admin/js/editor.js for initialization options.
 *
 * @uses _WP_Editors
 * @since 4.8.0
 */
function wp_enqueue_editor() {
    if ( ! class_exists( '_WP_Editors', false ) ) {
        require ABSPATH . WPINC . '/class-wp-editor.php';
    }

    _WP_Editors::enqueue_default_editor();
}

/**
 * Enqueues assets needed by the code editor for the given settings.
 *
 * @since 4.9.0
 *
 * @see wp_enqueue_editor()
 * @see wp_get_code_editor_settings()
 * @see _WP_Editors::parse_settings()
 *
 * @param array $args {
 *     Args.
 *
 *     @type string   $type       The MIME type of the file to be edited.
 *     @type string   $file       Filename to be edited. Extension is used to sniff the type. Can be supplied as alternative to `$type` param.
 *     @type WP_Theme $theme      Theme being edited when on the theme file editor.
 *     @type string   $plugin     Plugin being edited when on the plugin file editor.
 *     @type array    $codemirror Additional CodeMirror setting overrides.
 *     @type array    $csslint    CSSLint rule overrides.
 *     @type array    $jshint     JSHint rule overrides.
 *     @type array    $htmlhint   HTMLHint rule overrides.
 * }
 * @return array|false Settings for the enqueued code editor, or false if the editor was not enqueued.
 */
function wp_enqueue_code_editor( $args ) {
    if ( is_user_logged_in() && 'false' === wp_get_current_user()->syntax_highlighting ) {
        return false;
    }

    $settings = wp_get_code_editor_settings( $args );

    if ( empty( $settings ) || empty( $settings['codemirror'] ) ) {
        return false;
    }

    wp_enqueue_script( 'code-editor' );
    wp_enqueue_style( 'code-editor' );

    if ( isset( $settings['codemirror']['mode'] ) ) {
        $mode = $settings['codemirror']['mode'];
        if ( is_string( $mode ) ) {
            $mode = array(
                'name' => $mode,
            );
        }

        if ( ! empty( $settings['codemirror']['lint'] ) ) {
            switch ( $mode['name'] ) {
                case 'css':
                case 'text/css':
                case 'text/x-scss':
                case 'text/x-less':
                    wp_enqueue_script( 'csslint' );
                    break;
                case 'htmlmixed':
                case 'text/html':
                case 'php':
                case 'application/x-httpd-php':
                case 'text/x-php':
                    wp_enqueue_script( 'htmlhint' );
                    wp_enqueue_script( 'csslint' );
                    if ( ! current_user_can( 'unfiltered_html' ) ) {
                        wp_enqueue_script( 'htmlhint-kses' );
                    }
                    break;
                case 'javascript':
                case 'application/ecmascript':
                case 'application/json':
                case 'application/javascript':
                case 'application/ld+json':
                case 'text/typescript':
                case 'application/typescript':
                    wp_enqueue_script( 'jsonlint' );
                    break;
            }
        }
    }

    wp_add_inline_script( 'code-editor', sprintf( 'jQuery.extend( wp.codeEditor.defaultSettings, %s );', wp_json_encode( $settings, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) ) );

    /**
     * Fires when scripts and styles are enqueued for the code editor.
     *
     * @since 4.9.0
     *
     * @param array $settings Settings for the enqueued code editor.
     */
    do_action( 'wp_enqueue_code_editor', $settings );

    return $settings;
}

/**
 * Generates and returns code editor settings.
 *
 * @since 5.0.0
 *
 * @see wp_enqueue_code_editor()
 *
 * @param array $args {
 *     Args.
 *
 *     @type string   $type       The MIME type of the file to be edited.
 *     @type string   $file       Filename to be edited. Extension is used to sniff the type. Can be supplied as alternative to `$type` param.
 *     @type WP_Theme $theme      Theme being edited when on the theme file editor.
 *     @type string   $plugin     Plugin being edited when on the plugin file editor.
 *     @type array    $codemirror Additional CodeMirror setting overrides.
 *     @type array    $csslint    CSSLint rule overrides.
 *     @type array    $jshint     JSHint rule overrides.
 *     @type array    $htmlhint   HTMLHint rule overrides.
 * }
 * @return array|false Settings for the code editor.
 */
function wp_get_code_editor_settings( $args ) {
    $settings = array(
        'codemirror' => array(
            'indentUnit'       => 4,
            'indentWithTabs'   => true,
            'inputStyle'       => 'contenteditable',
            'lineNumbers'      => true,
            'lineWrapping'     => true,
            'styleActiveLine'  => true,
            'continueComments' => true,
            'extraKeys'        => array(
                'Ctrl-Space' => 'autocomplete',
                'Ctrl-/'     => 'toggleComment',
                'Cmd-/'      => 'toggleComment',
                'Alt-F'      => 'findPersistent',
                'Ctrl-F'     => 'findPersistent',
                'Cmd-F'      => 'findPersistent',
            ),
            'direction'        => 'ltr', // Code is shown in LTR even in RTL languages.
            'gutters'          => array(),
        ),
        'csslint'    => array(
            'errors'                    => true, // Parsing errors.
            'box-model'                 => true,
            'display-property-grouping' => true,
            'duplicate-properties'      => true,
            'known-properties'          => true,
            'outline-none'              => true,
        ),
        'jshint'     => array(
            'esversion'       => 11,
            'module'          => str_ends_with( $args['file'] ?? '', '.mjs' ),

            // This script module URL is intentionally referenced here instead of registering an espree script module
            // in wp_default_script_modules(). This is a first stab at a core-only private module.
            'espreeModuleUrl' => add_query_arg( 'ver', '9.6.1', includes_url( 'js/codemirror/espree.min.js' ) ),

            // The following JSHint *linting rule* options are copied from
            // <https://github.com/WordPress/wordpress-develop/blob/6.9.0/.jshintrc>.
            // Parsing-related options such as `esversion` (and, in other contexts, `es5`, `es3`, `module`, `strict`)
            // are honored by the Espree-based integration, but these linting-rule options are not interpreted by Espree
            // and are kept only for compatibility/documentation with the original JSHint configuration.
            'boss'            => true,
            'curly'           => true,
            'eqeqeq'          => true,
            'eqnull'          => true,
            'expr'            => true,
            'immed'           => true,
            'noarg'           => true,
            'nonbsp'          => true,
            'quotmark'        => 'single',
            'undef'           => true,
            'unused'          => true,
            'browser'         => true,
            'globals'         => array(
                '_'                 => false,
                'Backbone'          => false,
                'jQuery'            => false,
                'JSON'              => false,
                'wp'                => false,
                'export'            => false,
                'module'            => false,
                'require'           => false,
                'WorkerGlobalScope' => false,
                'self'              => false,
                'OffscreenCanvas'   => false,
                'Promise'           => false,
            ),
        ),
        'htmlhint'   => array(
            'tagname-lowercase'        => true,
            'attr-lowercase'           => true,
            'attr-value-double-quotes' => false,
            'doctype-first'            => false,
            'tag-pair'                 => true,
            'spec-char-escape'         => true,
            'id-unique'                => true,
            'src-not-empty'            => true,
            'attr-no-duplication'      => true,
            'alt-require'              => true,
            'space-tab-mixed-disabled' => 'tab',
            'attr-unsafe-chars'        => true,
        ),
    );

    $type = '';
    if ( isset( $args['type'] ) ) {
        $type = $args['type'];

        // Remap MIME types to ones that CodeMirror modes will recognize.
        if ( 'application/x-patch' === $type || 'text/x-patch' === $type ) {
            $type = 'text/x-diff';
        }
    } elseif ( isset( $args['file'] ) && str_contains( basename( $args['file'] ), '.' ) ) {
        $extension = strtolower( pathinfo( $args['file'], PATHINFO_EXTENSION ) );
        foreach ( wp_get_mime_types() as $exts => $mime ) {
            if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
                $type = $mime;
                break;
            }
        }

        // Supply any types that are not matched by wp_get_mime_types().
        if ( empty( $type ) ) {
            switch ( $extension ) {
                case 'conf':
                    $type = 'text/nginx';
                    break;
                case 'css':
                    $type = 'text/css';
                    break;
                case 'diff':
                case 'patch':
                    $type = 'text/x-diff';
                    break;
                case 'html':
                case 'htm':
                    $type = 'text/html';
                    break;
                case 'http':
                    $type = 'message/http';
                    break;
                case 'js':
                case 'mjs':
                    $type = 'text/javascript';
                    break;
                case 'json':
                    $type = 'application/json';
                    break;
                case 'jsx':
                    $type = 'text/jsx';
                    break;
                case 'less':
                    $type = 'text/x-less';
                    break;
                case 'md':
                    $type = 'text/x-gfm';
                    break;
                case 'php':
                case 'phtml':
                case 'php3':
                case 'php4':
                case 'php5':
                case 'php7':
                case 'phps':
                    $type = 'application/x-httpd-php';
                    break;
                case 'scss':
                    $type = 'text/x-scss';
                    break;
                case 'sass':
                    $type = 'text/x-sass';
                    break;
                case 'sh':
                case 'bash':
                    $type = 'text/x-sh';
                    break;
                case 'sql':
                    $type = 'text/x-sql';
                    break;
                case 'svg':
                    $type = 'application/svg+xml';
                    break;
                case 'xml':
                    $type = 'text/xml';
                    break;
                case 'yml':
                case 'yaml':
                    $type = 'text/x-yaml';
                    break;
                case 'txt':
                default:
                    $type = 'text/plain';
                    break;
            }
        }
    }

    if ( in_array( $type, array( 'text/css', 'text/x-scss', 'text/x-less', 'text/x-sass' ), true ) ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => $type,
                'lint'              => false,
                'autoCloseBrackets' => true,
                'matchBrackets'     => true,
            )
        );
    } elseif ( 'text/x-diff' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode' => 'diff',
            )
        );
    } elseif ( 'text/html' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => 'htmlmixed',
                'lint'              => true,
                'autoCloseBrackets' => true,
                'autoCloseTags'     => true,
                'matchTags'         => array(
                    'bothTags' => true,
                ),
            )
        );

        if ( ! current_user_can( 'unfiltered_html' ) ) {
            $settings['htmlhint']['kses'] = wp_kses_allowed_html( 'post' );
        }
    } elseif ( 'text/x-gfm' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'                => 'gfm',
                'highlightFormatting' => true,
            )
        );
    } elseif ( 'application/javascript' === $type || 'text/javascript' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => 'javascript',
                'lint'              => true,
                'autoCloseBrackets' => true,
                'matchBrackets'     => true,
            )
        );
    } elseif ( str_contains( $type, 'json' ) ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => array(
                    'name' => 'javascript',
                ),
                'lint'              => true,
                'autoCloseBrackets' => true,
                'matchBrackets'     => true,
            )
        );
        if ( 'application/ld+json' === $type ) {
            $settings['codemirror']['mode']['jsonld'] = true;
        } else {
            $settings['codemirror']['mode']['json'] = true;
        }
    } elseif ( str_contains( $type, 'jsx' ) ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => 'jsx',
                'autoCloseBrackets' => true,
                'matchBrackets'     => true,
            )
        );
    } elseif ( 'text/x-markdown' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'                => 'markdown',
                'highlightFormatting' => true,
            )
        );
    } elseif ( 'text/nginx' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode' => 'nginx',
            )
        );
    } elseif ( 'application/x-httpd-php' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => 'php',
                'autoCloseBrackets' => true,
                'autoCloseTags'     => true,
                'matchBrackets'     => true,
                'matchTags'         => array(
                    'bothTags' => true,
                ),
            )
        );
    } elseif ( 'text/x-sql' === $type || 'text/x-mysql' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => 'sql',
                'autoCloseBrackets' => true,
                'matchBrackets'     => true,
            )
        );
    } elseif ( str_contains( $type, 'xml' ) ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode'              => 'xml',
                'autoCloseBrackets' => true,
                'autoCloseTags'     => true,
                'matchTags'         => array(
                    'bothTags' => true,
                ),
            )
        );
    } elseif ( 'text/x-yaml' === $type ) {
        $settings['codemirror'] = array_merge(
            $settings['codemirror'],
            array(
                'mode' => 'yaml',
            )
        );
    } else {
        $settings['codemirror']['mode'] = $type;
    }

    if ( ! empty( $settings['codemirror']['lint'] ) ) {
        $settings['codemirror']['gutters'][] = 'CodeMirror-lint-markers';
    }

    // Let settings supplied via args override any defaults.
    foreach ( wp_array_slice_assoc( $args, array( 'codemirror', 'csslint', 'jshint', 'htmlhint' ) ) as $key => $value ) {
        $settings[ $key ] = array_merge(
            $settings[ $key ],
            $value
        );
    }

    /**
     * Filters settings that are passed into the code editor.
     *
     * Returning a falsey value will disable the syntax-highlighting code editor.
     *
     * @since 4.9.0
     *
     * @param array $settings The array of settings passed to the code editor.
     *                        A falsey value disables the editor.
     * @param array $args {
     *     Args passed when calling `get_code_editor_settings()`.
     *
     *     @type string   $type       The MIME type of the file to be edited.
     *     @type string   $file       Filename being edited.
     *     @type WP_Theme $theme      Theme being edited when on the theme file editor.
     *     @type string   $plugin     Plugin being edited when on the plugin file editor.
     *     @type array    $codemirror Additional CodeMirror setting overrides.
     *     @type array    $csslint    CSSLint rule overrides.
     *     @type array    $jshint     JSHint rule overrides.
     *     @type array    $htmlhint   HTMLHint rule overrides.
     * }
     */
    return apply_filters( 'wp_code_editor_settings', $settings, $args );
}

/**
 * Retrieves the contents of the search WordPress query variable.
 *
 * The search query string is passed through esc_attr() to ensure that it is safe
 * for placing in an HTML attribute.
 *
 * @since 2.3.0
 *
 * @param bool $escaped Whether the result is escaped. Default true.
 *                      Only use when you are later escaping it. Do not use unescaped.
 * @return string
 */
function get_search_query( $escaped = true ) {
    /**
     * Filters the contents of the search query variable.
     *
     * @since 2.3.0
     *
     * @param mixed $search Contents of the search query variable.
     */
    $query = apply_filters( 'get_search_query', get_query_var( 's' ) );

    if ( $escaped ) {
        $query = esc_attr( $query );
    }
    return $query;
}

/**
 * Displays the contents of the search query variable.
 *
 * The search query string is passed through esc_attr() to ensure that it is safe
 * for placing in an HTML attribute.
 *
 * @since 2.1.0
 */
function the_search_query() {
    /**
     * Filters the contents of the search query variable, for display.
     *
     * @since 2.3.0
     *
     * @param mixed $search Contents of the search query variable.
     */
    echo esc_attr( apply_filters( 'the_search_query', get_search_query( false ) ) );
}

/**
 * Gets the language attributes for the 'html' tag.
 *
 * Builds up a set of HTML attributes containing the text direction and language
 * information for the page.
 *
 * @since 4.3.0
 *
 * @param string $doctype Optional. The type of HTML document. Accepts 'xhtml' or 'html'. Default 'html'.
 * @return string A space-separated list of language attributes.
 */
function get_language_attributes( $doctype = 'html' ) {
    $attributes = array();

    if ( function_exists( 'is_rtl' ) && is_rtl() ) {
        $attributes[] = 'dir="rtl"';
    }

    $lang = get_bloginfo( 'language' );
    if ( $lang ) {
        if ( 'text/html' === get_option( 'html_type' ) || 'html' === $doctype ) {
            $attributes[] = 'lang="' . esc_attr( $lang ) . '"';
        }

        if ( 'text/html' !== get_option( 'html_type' ) || 'xhtml' === $doctype ) {
            $attributes[] = 'xml:lang="' . esc_attr( $lang ) . '"';
        }
    }

    $output = implode( ' ', $attributes );

    /**
     * Filters the language attributes for display in the 'html' tag.
     *
     * @since 2.5.0
     * @since 4.3.0 Added the `$doctype` parameter.
     *
     * @param string $output A space-separated list of language attributes.
     * @param string $doctype The type of HTML document (xhtml|html).
     */
    return apply_filters( 'language_attributes', $output, $doctype );
}

/**
 * Displays the language attributes for the 'html' tag.
 *
 * Builds up a set of HTML attributes containing the text direction and language
 * information for the page.
 *
 * @since 2.1.0
 * @since 4.3.0 Converted into a wrapper for get_language_attributes().
 *
 * @param string $doctype Optional. The type of HTML document. Accepts 'xhtml' or 'html'. Default 'html'.
 */
function language_attributes( $doctype = 'html' ) {
    echo get_language_attributes( $doctype );
}

/**
 * Retrieves paginated links for archive post pages.
 *
 * Technically, the function can be used to create paginated link list for any
 * area. The 'base' argument is used to reference the url, which will be used to
 * create the paginated links. The 'format' argument is then used for replacing
 * the page number. It is however, most likely and by default, to be used on the
 * archive post pages.
 *
 * The 'type' argument controls format of the returned value. The default is
 * 'plain', which is just a string with the links separated by a newline
 * character. The other possible values are either 'array' or 'list'. The
 * 'array' value will return an array of the paginated link list to offer full
 * control of display. The 'list' value will place all of the paginated links in
 * an unordered HTML list.
 *
 * The 'total' argument is the total amount of pages and is an integer. The
 * 'current' argument is the current page number and is also an integer.
 *
 * An example of the 'base' argument is "http://example.com/all_posts.php%_%"
 * and the '%_%' is required. The '%_%' will be replaced by the contents of in
 * the 'format' argument. An example for the 'format' argument is "?page=%#%"
 * and the '%#%' is also required. The '%#%' will be replaced with the page
 * number.
 *
 * You can include the previous and next links in the list by setting the
 * 'prev_next' argument to true, which it is by default. You can set the
 * previous text, by using the 'prev_text' argument. You can set the next text
 * by setting the 'next_text' argument.
 *
 * If the 'show_all' argument is set to true, then it will show all of the pages
 * instead of a short list of the pages near the current page. By default, the
 * 'show_all' is set to false and controlled by the 'end_size' and 'mid_size'
 * arguments. The 'end_size' argument is how many numbers on either the start
 * and the end list edges, by default is 1. The 'mid_size' argument is how many
 * numbers to either side of current page, but not including current page.
 *
 * It is possible to add query vars to the link by using the 'add_args' argument
 * and see add_query_arg() for more information.
 *
 * The 'before_page_number' and 'after_page_number' arguments allow users to
 * augment the links themselves. Typically this might be to add context to the
 * numbered links so that screen reader users understand what the links are for.
 * The text strings are added before and after the page number - within the
 * anchor tag.
 *
 * @since 2.1.0
 * @since 4.9.0 Added the `aria_current` argument.
 *
 * @global WP_Query   $wp_query   WordPress Query object.
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string|array $args {
 *     Optional. Array or string of arguments for generating paginated links for archives.
 *
 *     @type string $base               Base of the paginated url. Default empty.
 *     @type string $format             Format for the pagination structure. Default empty.
 *     @type int    $total              The total amount of pages. Default is the value WP_Query's
 *                                      `max_num_pages` or 1.
 *     @type int    $current            The current page number. Default is 'paged' query var or 1.
 *     @type string $aria_current       The value for the aria-current attribute. Possible values are 'page',
 *                                      'step', 'location', 'date', 'time', 'true', 'false'. Default is 'page'.
 *     @type bool   $show_all           Whether to show all pages. Default false.
 *     @type int    $end_size           How many numbers on either the start and the end list edges.
 *                                      Default 1.
 *     @type int    $mid_size           How many numbers to either side of the current pages. Default 2.
 *     @type bool   $prev_next          Whether to include the previous and next links in the list. Default true.
 *     @type string $prev_text          The previous page text. Default '&laquo; Previous'.
 *     @type string $next_text          The next page text. Default 'Next &raquo;'.
 *     @type string $type               Controls format of the returned value. Possible values are 'plain',
 *                                      'array' and 'list'. Default is 'plain'.
 *     @type array  $add_args           An array of query args to add. Default false.
 *     @type string $add_fragment       A string to append to each link. Default empty.
 *     @type string $before_page_number A string to appear before the page number. Default empty.
 *     @type string $after_page_number  A string to append after the page number. Default empty.
 * }
 * @return string|string[]|null String of page links or array of page links, depending on 'type' argument.
 *                              Null if total number of pages is less than 2.
 */
function paginate_links( $args = '' ) {
    global $wp_query, $wp_rewrite;

    // Setting up default values based on the current URL.
    $pagenum_link = html_entity_decode( get_pagenum_link() );
    $url_parts    = explode( '?', $pagenum_link );

    // Get max pages and current page out of the current query, if available.
    $total   = $wp_query->max_num_pages ?? 1;
    $current = get_query_var( 'paged' ) ? (int) get_query_var( 'paged' ) : 1;

    /*
     * Ensures sites not using trailing slashes get links in the form
     * `/page/2` rather than `/page/2/`. On these sites, linking to the
     * URL with a trailing slash will result in a 301 redirect from the
     * incorrect URL to the correctly formatted one. This presents an
     * unnecessary performance hit.
     */
    if ( $wp_rewrite->using_permalinks() && ! $wp_rewrite->use_trailing_slashes ) {
        $pagenum_link = untrailingslashit( $url_parts[0] );
    } else {
        $pagenum_link = trailingslashit( $url_parts[0] );
    }
    $pagenum_link .= '%_%';

    // URL base depends on permalink settings.
    $format  = $wp_rewrite->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
    $format .= $wp_rewrite->using_permalinks() ? user_trailingslashit( $wp_rewrite->pagination_base . '/%#%', 'paged' ) : '?paged=%#%';
    if ( $wp_rewrite->using_permalinks() && ! $wp_rewrite->use_trailing_slashes ) {
        $format = '/' . ltrim( $format, '/' );
    }

    $defaults = array(
        'base'               => $pagenum_link, // http://example.com/all_posts.php%_% : %_% is replaced by format (below).
        'format'             => $format, // ?page=%#% : %#% is replaced by the page number.
        'total'              => $total,
        'current'            => $current,
        'aria_current'       => 'page',
        'show_all'           => false,
        'prev_next'          => true,
        'prev_text'          => __( '&laquo; Previous' ),
        'next_text'          => __( 'Next &raquo;' ),
        'end_size'           => 1,
        'mid_size'           => 2,
        'type'               => 'plain',
        'add_args'           => array(), // Array of query args to add.
        'add_fragment'       => '',
        'before_page_number' => '',
        'after_page_number'  => '',
    );

    $args = wp_parse_args( $args, $defaults );

    if ( ! is_array( $args['add_args'] ) ) {
        $args['add_args'] = array();
    }

    // Merge additional query vars found in the original URL into 'add_args' array.
    if ( isset( $url_parts[1] ) ) {
        // Find the format argument.
        $format       = explode( '?', str_replace( '%_%', $args['format'], $args['base'] ) );
        $format_query = $format[1] ?? '';
        wp_parse_str( $format_query, $format_args );

        // Find the query args of the requested URL.
        wp_parse_str( $url_parts[1], $url_query_args );

        // Remove the format argument from the array of query arguments, to avoid overwriting custom format.
        foreach ( $format_args as $format_arg => $format_arg_value ) {
            unset( $url_query_args[ $format_arg ] );
        }

        $args['add_args'] = array_merge( $args['add_args'], urlencode_deep( $url_query_args ) );
    }

    // Who knows what else people pass in $args.
    $total = (int) $args['total'];
    if ( $total < 2 ) {
        return null;
    }
    $current  = (int) $args['current'];
    $end_size = (int) $args['end_size']; // Out of bounds? Make it the default.
    if ( $end_size < 1 ) {
        $end_size = 1;
    }
    $mid_size = (int) $args['mid_size'];
    if ( $mid_size < 0 ) {
        $mid_size = 2;
    }

    $add_args   = $args['add_args'];
    $r          = '';
    $page_links = array();
    $dots       = false;

    if ( $args['prev_next'] && $current && 1 < $current ) :
        $link = str_replace( '%_%', 2 === $current ? '' : $args['format'], $args['base'] );
        $link = str_replace( '%#%', $current - 1, $link );
        if ( $add_args ) {
            $link = add_query_arg( $add_args, $link );
        }
        $link .= $args['add_fragment'];

        $page_links[] = sprintf(
            '<a class="prev page-numbers" href="%s">%s</a>',
            /**
             * Filters the paginated links for the given archive pages.
             *
             * @since 3.0.0
             *
             * @param string $link The paginated link URL.
             */
            esc_url( apply_filters( 'paginate_links', $link ) ),
            $args['prev_text']
        );
    endif;

    for ( $n = 1; $n <= $total; $n++ ) :
        if ( $n === $current ) :
            $page_links[] = sprintf(
                '<span aria-current="%s" class="page-numbers current">%s</span>',
                esc_attr( $args['aria_current'] ),
                $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number']
            );

            $dots = true;
        else :
            if ( $args['show_all'] || ( $n <= $end_size || ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) || $n > $total - $end_size ) ) :
                $link = str_replace( '%_%', 1 === $n ? '' : $args['format'], $args['base'] );
                $link = str_replace( '%#%', $n, $link );
                if ( $add_args ) {
                    $link = add_query_arg( $add_args, $link );
                }
                $link .= $args['add_fragment'];

                $page_links[] = sprintf(
                    '<a class="page-numbers" href="%s">%s</a>',
                    /** This filter is documented in wp-includes/general-template.php */
                    esc_url( apply_filters( 'paginate_links', $link ) ),
                    $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number']
                );

                $dots = true;
            elseif ( $dots && ! $args['show_all'] ) :
                $page_links[] = '<span class="page-numbers dots">' . __( '&hellip;' ) . '</span>';

                $dots = false;
            endif;
        endif;
    endfor;

    if ( $args['prev_next'] && $current && $current < $total ) :
        $link = str_replace( '%_%', $args['format'], $args['base'] );
        $link = str_replace( '%#%', $current + 1, $link );
        if ( $add_args ) {
            $link = add_query_arg( $add_args, $link );
        }
        $link .= $args['add_fragment'];

        $page_links[] = sprintf(
            '<a class="next page-numbers" href="%s">%s</a>',
            /** This filter is documented in wp-includes/general-template.php */
            esc_url( apply_filters( 'paginate_links', $link ) ),
            $args['next_text']
        );
    endif;

    switch ( $args['type'] ) {
        case 'array':
            return $page_links;

        case 'list':
            $r .= "<ul class='page-numbers'>\n\t<li>";
            $r .= implode( "</li>\n\t<li>", $page_links );
            $r .= "</li>\n</ul>\n";
            break;

        default:
            $r = implode( "\n", $page_links );
            break;
    }

    /**
     * Filters the HTML output of paginated links for archives.
     *
     * @since 5.7.0
     *
     * @param string $r    HTML output.
     * @param array  $args An array of arguments. See paginate_links()
     *                     for information on accepted arguments.
     */
    $r = apply_filters( 'paginate_links_output', $r, $args );

    return $r;
}

/**
 * Registers an admin color scheme css file.
 *
 * Allows a plugin to register a new admin color scheme. For example:
 *
 *     wp_admin_css_color( 'classic', __( 'Classic' ), admin_url( "css/colors-classic.css" ), array(
 *         '#07273E', '#14568A', '#D54E21', '#2683AE'
 *     ) );
 *
 * @since 2.5.0
 *
 * @global array $_wp_admin_css_colors
 *
 * @param string $key    The unique key for this theme.
 * @param string $name   The name of the theme.
 * @param string $url    The URL of the CSS file containing the color scheme.
 * @param array  $colors Optional. An array of CSS color definition strings which are used
 *                       to give the user a feel for the theme.
 * @param array  $icons {
 *     Optional. CSS color definitions used to color any SVG icons.
 *
 *     @type string $base    SVG icon base color.
 *     @type string $focus   SVG icon color on focus.
 *     @type string $current SVG icon color of current admin menu link.
 * }
 */
function wp_admin_css_color( $key, $name, $url, $colors = array(), $icons = array() ) {
    global $_wp_admin_css_colors;

    if ( ! isset( $_wp_admin_css_colors ) ) {
        $_wp_admin_css_colors = array();
    }

    $_wp_admin_css_colors[ $key ] = (object) array(
        'name'        => $name,
        'url'         => $url,
        'colors'      => $colors,
        'icon_colors' => $icons,
    );
}

/**
 * Registers the default admin color schemes.
 *
 * Registers the initial set of eight color schemes in the Profile section
 * of the dashboard which allows for styling the admin menu and toolbar.
 *
 * @see wp_admin_css_color()
 *
 * @since 3.0.0
 */
function register_admin_color_schemes() {
    $suffix  = is_rtl() ? '-rtl' : '';
    $suffix .= SCRIPT_DEBUG ? '' : '.min';

    wp_admin_css_color(
        'modern',
        _x( 'Default', 'admin color scheme' ),
        admin_url( "css/colors/modern/colors$suffix.css" ),
        array( '#1e1e1e', '#3858e9', '#7b90ff' ),
        array(
            'base'    => '#f3f1f1',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'fresh',
        _x( 'Fresh', 'admin color scheme' ),
        false,
        array( '#1d2327', '#2c3338', '#2271b1', '#72aee6' ),
        array(
            'base'    => '#a7aaad',
            'focus'   => '#72aee6',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'light',
        _x( 'Light', 'admin color scheme' ),
        admin_url( "css/colors/light/colors$suffix.css" ),
        array( '#e5e5e5', '#999', '#d64e07', '#04a4cc' ),
        array(
            'base'    => '#999',
            'focus'   => '#ccc',
            'current' => '#ccc',
        )
    );

    wp_admin_css_color(
        'blue',
        _x( 'Blue', 'admin color scheme' ),
        admin_url( "css/colors/blue/colors$suffix.css" ),
        array( '#096484', '#4796b3', '#52accc', '#74B6CE' ),
        array(
            'base'    => '#e5f8ff',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'midnight',
        _x( 'Midnight', 'admin color scheme' ),
        admin_url( "css/colors/midnight/colors$suffix.css" ),
        array( '#25282b', '#363b3f', '#69a8bb', '#e14d43' ),
        array(
            'base'    => '#f1f2f3',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'sunrise',
        _x( 'Sunrise', 'admin color scheme' ),
        admin_url( "css/colors/sunrise/colors$suffix.css" ),
        array( '#b43c38', '#cf4944', '#dd823b', '#ccaf0b' ),
        array(
            'base'    => '#f3f1f1',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'ectoplasm',
        _x( 'Ectoplasm', 'admin color scheme' ),
        admin_url( "css/colors/ectoplasm/colors$suffix.css" ),
        array( '#413256', '#523f6d', '#a3b745', '#d46f15' ),
        array(
            'base'    => '#ece6f6',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'ocean',
        _x( 'Ocean', 'admin color scheme' ),
        admin_url( "css/colors/ocean/colors$suffix.css" ),
        array( '#627c83', '#738e96', '#9ebaa0', '#aa9d88' ),
        array(
            'base'    => '#f2fcff',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );

    wp_admin_css_color(
        'coffee',
        _x( 'Coffee', 'admin color scheme' ),
        admin_url( "css/colors/coffee/colors$suffix.css" ),
        array( '#46403c', '#59524c', '#c7a589', '#9ea476' ),
        array(
            'base'    => '#f3f2f1',
            'focus'   => '#fff',
            'current' => '#fff',
        )
    );
}

/**
 * Displays the URL of a WordPress admin CSS file.
 *
 * @see WP_Styles::_css_href() and its {@see 'style_loader_src'} filter.
 *
 * @since 2.3.0
 *
 * @param string $file file relative to wp-admin/ without its ".css" extension.
 * @return string
 */
function wp_admin_css_uri( $file = 'wp-admin' ) {
    if ( defined( 'WP_INSTALLING' ) ) {
        $_file = "./$file.css";
    } else {
        $_file = admin_url( "$file.css" );
    }
    $_file = add_query_arg( 'version', get_bloginfo( 'version' ), $_file );

    /**
     * Filters the URI of a WordPress admin CSS file.
     *
     * @since 2.3.0
     *
     * @param string $_file Relative path to the file with query arguments attached.
     * @param string $file  Relative path to the file, minus its ".css" extension.
     */
    return apply_filters( 'wp_admin_css_uri', $_file, $file );
}

/**
 * Enqueues or directly prints a stylesheet link to the specified CSS file.
 *
 * "Intelligently" decides to enqueue or to print the CSS file. If the
 * {@see 'wp_print_styles'} action has *not* yet been called, the CSS file will be
 * enqueued. If the {@see 'wp_print_styles'} action has been called, the CSS link will
 * be printed. Printing may be forced by passing true as the $force_echo
 * (second) parameter.
 *
 * For backward compatibility with WordPress 2.3 calling method: If the $file
 * (first) parameter does not correspond to a registered CSS file, we assume
 * $file is a file relative to wp-admin/ without its ".css" extension. A
 * stylesheet link to that generated URL is printed.
 *
 * @since 2.3.0
 *
 * @param string $file       Optional. Style handle name or file name (without ".css" extension) relative
 *                           to wp-admin/. Defaults to 'wp-admin'.
 * @param bool   $force_echo Optional. Force the stylesheet link to be printed rather than enqueued.
 */
function wp_admin_css( $file = 'wp-admin', $force_echo = false ) {
    // For backward compatibility.
    $handle = str_starts_with( $file, 'css/' ) ? substr( $file, 4 ) : $file;

    if ( wp_styles()->query( $handle ) ) {
        if ( $force_echo || did_action( 'wp_print_styles' ) ) {
            // We already printed the style queue. Print this one immediately.
            wp_print_styles( $handle );
        } else {
            // Add to style queue.
            wp_enqueue_style( $handle );
        }
        return;
    }

    $stylesheet_link = sprintf(
        "<link rel='stylesheet' href='%s' />\n",
        esc_url( wp_admin_css_uri( $file ) )
    );

    /**
     * Filters the stylesheet link to the specified CSS file.
     *
     * If the site is set to display right-to-left, the RTL stylesheet link
     * will be used instead.
     *
     * @since 2.3.0
     * @param string $stylesheet_link HTML link element for the stylesheet.
     * @param string $file            Style handle name or filename (without ".css" extension)
     *                                relative to wp-admin/. Defaults to 'wp-admin'.
     */
    echo apply_filters( 'wp_admin_css', $stylesheet_link, $file );

    if ( function_exists( 'is_rtl' ) && is_rtl() ) {
        $rtl_stylesheet_link = sprintf(
            "<link rel='stylesheet' href='%s' />\n",
            esc_url( wp_admin_css_uri( "$file-rtl" ) )
        );

        /** This filter is documented in wp-includes/general-template.php */
        echo apply_filters( 'wp_admin_css', $rtl_stylesheet_link, "$file-rtl" );
    }
}

/**
 * Enqueues the default ThickBox js and css.
 *
 * If any of the settings need to be changed, this can be done with another js
 * file similar to media-upload.js. That file should
 * require array('thickbox') to ensure it is loaded after.
 *
 * @since 2.5.0
 */
function add_thickbox() {
    wp_enqueue_script( 'thickbox' );
    wp_enqueue_style( 'thickbox' );

    if ( is_network_admin() ) {
        add_action( 'admin_head', '_thickbox_path_admin_subfolder' );
    }
}

/**
 * Displays the XHTML generator that is generated on the wp_head hook.
 *
 * See {@see 'wp_head'}.
 *
 * @since 2.5.0
 */
function wp_generator() {
    /**
     * Filters the output of the XHTML generator tag.
     *
     * @since 2.5.0
     *
     * @param string $generator_type The XHTML generator.
     */
    the_generator( apply_filters( 'wp_generator_type', 'xhtml' ) );
}

/**
 * Displays the generator XML or Comment for RSS, ATOM, etc.
 *
 * Returns the correct generator type for the requested output format. Allows
 * for a plugin to filter generators overall the {@see 'the_generator'} filter.
 *
 * @since 2.5.0
 *
 * @param string $type The type of generator to output - (html|xhtml|atom|rss2|rdf|comment|export).
 */
function the_generator( $type ) {
    /**
     * Filters the output of the XHTML generator tag, for display.
     *
     * @since 2.5.0
     *
     * @param string $generator_type The generator output.
     * @param string $type           The type of generator to output. Accepts 'html',
     *                               'xhtml', 'atom', 'rss2', 'rdf', 'comment', 'export'.
     */
    echo apply_filters( 'the_generator', get_the_generator( $type ), $type ) . "\n";
}

/**
 * Creates the generator XML or Comment for RSS, ATOM, etc.
 *
 * Returns the correct generator type for the requested output format. Allows
 * for a plugin to filter generators on an individual basis using the
 * {@see 'get_the_generator_$type'} filter.
 *
 * @since 2.5.0
 *
 * @param string $type The type of generator to return - (html|xhtml|atom|rss2|rdf|comment|export).
 * @return string|null The HTML content for the generator.
 */
function get_the_generator( $type = '' ) {
    if ( empty( $type ) ) {

        $current_filter = current_filter();
        if ( empty( $current_filter ) ) {
            return null;
        }

        switch ( $current_filter ) {
            case 'rss2_head':
            case 'commentsrss2_head':
                $type = 'rss2';
                break;
            case 'rss_head':
            case 'opml_head':
                $type = 'comment';
                break;
            case 'rdf_header':
                $type = 'rdf';
                break;
            case 'atom_head':
            case 'comments_atom_head':
            case 'app_head':
                $type = 'atom';
                break;
        }
    }

    switch ( $type ) {
        case 'html':
            $gen = '<meta name="generator" content="WordPress ' . esc_attr( get_bloginfo( 'version' ) ) . '">';
            break;
        case 'xhtml':
            $gen = '<meta name="generator" content="WordPress ' . esc_attr( get_bloginfo( 'version' ) ) . '" />';
            break;
        case 'atom':
            $gen = '<generator uri="https://wordpress.org/" version="' . esc_attr( get_bloginfo_rss( 'version' ) ) . '">WordPress</generator>';
            break;
        case 'rss2':
            $gen = '<generator>' . sanitize_url( 'https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) ) . '</generator>';
            break;
        case 'rdf':
            $gen = '<admin:generatorAgent rdf:resource="' . sanitize_url( 'https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) ) . '" />';
            break;
        case 'comment':
            $gen = '<!-- generator="WordPress/' . esc_attr( get_bloginfo( 'version' ) ) . '" -->';
            break;
        case 'export':
            $gen = '<!-- generator="WordPress/' . esc_attr( get_bloginfo_rss( 'version' ) ) . '" created="' . gmdate( 'Y-m-d H:i' ) . '" -->';
            break;
    }

    /**
     * Filters the HTML for the retrieved generator type.
     *
     * The dynamic portion of the hook name, `$type`, refers to the generator type.
     *
     * Possible hook names include:
     *
     *  - `get_the_generator_atom`
     *  - `get_the_generator_comment`
     *  - `get_the_generator_export`
     *  - `get_the_generator_html`
     *  - `get_the_generator_rdf`
     *  - `get_the_generator_rss2`
     *  - `get_the_generator_xhtml`
     *
     * @since 2.5.0
     *
     * @param string $gen  The HTML markup output to wp_head().
     * @param string $type The type of generator. Accepts 'html', 'xhtml', 'atom',
     *                     'rss2', 'rdf', 'comment', 'export'.
     */
    return apply_filters( "get_the_generator_{$type}", $gen, $type );
}

/**
 * Outputs the HTML checked attribute.
 *
 * Compares the first two arguments and if identical marks as checked.
 *
 * @since 1.0.0
 *
 * @param mixed $checked One of the values to compare.
 * @param mixed $current Optional. The other value to compare if not just true.
 *                       Default true.
 * @param bool  $display Optional. Whether to echo or just return the string.
 *                       Default true.
 * @return string HTML attribute or empty string.
 */
function checked( $checked, $current = true, $display = true ) {
    return __checked_selected_helper( $checked, $current, $display, 'checked' );
}

/**
 * Outputs the HTML selected attribute.
 *
 * Compares the first two arguments and if identical marks as selected.
 *
 * @since 1.0.0
 *
 * @param mixed $selected One of the values to compare.
 * @param mixed $current  Optional. The other value to compare if not just true.
 *                        Default true.
 * @param bool  $display  Optional. Whether to echo or just return the string.
 *                        Default true.
 * @return string HTML attribute or empty string.
 */
function selected( $selected, $current = true, $display = true ) {
    return __checked_selected_helper( $selected, $current, $display, 'selected' );
}

/**
 * Outputs the HTML disabled attribute.
 *
 * Compares the first two arguments and if identical marks as disabled.
 *
 * @since 3.0.0
 *
 * @param mixed $disabled One of the values to compare.
 * @param mixed $current  Optional. The other value to compare if not just true.
 *                        Default true.
 * @param bool  $display  Optional. Whether to echo or just return the string.
 *                        Default true.
 * @return string HTML attribute or empty string.
 */
function disabled( $disabled, $current = true, $display = true ) {
    return __checked_selected_helper( $disabled, $current, $display, 'disabled' );
}

/**
 * Outputs the HTML readonly attribute.
 *
 * Compares the first two arguments and if identical marks as readonly.
 *
 * @since 5.9.0
 *
 * @param mixed $readonly_value One of the values to compare.
 * @param mixed $current        Optional. The other value to compare if not just true.
 *                              Default true.
 * @param bool  $display        Optional. Whether to echo or just return the string.
 *                              Default true.
 * @return string HTML attribute or empty string.
 */
function wp_readonly( $readonly_value, $current = true, $display = true ) {
    return __checked_selected_helper( $readonly_value, $current, $display, 'readonly' );
}

/*
 * Include a compat `readonly()` function on PHP < 8.1. Since PHP 8.1,
 * `readonly` is a reserved keyword and cannot be used as a function name.
 * In order to avoid PHP parser errors, this function was extracted
 * to a separate file and is only included conditionally on PHP < 8.1.
 */
if ( PHP_VERSION_ID < 80100 ) {
    require_once __DIR__ . '/php-compat/readonly.php';
}

/**
 * Private helper function for checked, selected, disabled and readonly.
 *
 * Compares the first two arguments and if identical marks as `$type`.
 *
 * @since 2.8.0
 * @access private
 *
 * @param mixed  $helper  One of the values to compare.
 * @param mixed  $current The other value to compare if not just true.
 * @param bool   $display Whether to echo or just return the string.
 * @param string $type    The type of checked|selected|disabled|readonly we are doing.
 * @return string HTML attribute or empty string.
 */
function __checked_selected_helper( $helper, $current, $display, $type ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
    if ( (string) $helper === (string) $current ) {
        $result = " $type='$type'";
    } else {
        $result = '';
    }

    if ( $display ) {
        echo $result;
    }

    return $result;
}

/**
 * Assigns a visual indicator for required form fields.
 *
 * @since 6.1.0
 *
 * @return string Indicator glyph wrapped in a `span` tag.
 */
function wp_required_field_indicator() {
    /* translators: Character to identify required form fields. */
    $glyph     = __( '*' );
    $indicator = '<span class="required">' . esc_html( $glyph ) . '</span>';

    /**
     * Filters the markup for a visual indicator of required form fields.
     *
     * @since 6.1.0
     *
     * @param string $indicator Markup for the indicator element.
     */
    return apply_filters( 'wp_required_field_indicator', $indicator );
}

/**
 * Creates a message to explain required form fields.
 *
 * @since 6.1.0
 *
 * @return string Message text and glyph wrapped in a `span` tag.
 */
function wp_required_field_message() {
    $message = sprintf(
        '<span class="required-field-message">%s</span>',
        /* translators: %s: Asterisk symbol (*). */
        sprintf( __( 'Required fields are marked %s' ), wp_required_field_indicator() )
    );

    /**
     * Filters the message to explain required form fields.
     *
     * @since 6.1.0
     *
     * @param string $message Message text and glyph wrapped in a `span` tag.
     */
    return apply_filters( 'wp_required_field_message', $message );
}

/**
 * Default settings for heartbeat.
 *
 * Outputs the nonce used in the heartbeat XHR.
 *
 * @since 3.6.0
 *
 * @param array $settings
 * @return array Heartbeat settings.
 */
function wp_heartbeat_settings( $settings ) {
    if ( ! is_admin() ) {
        $settings['ajaxurl'] = admin_url( 'admin-ajax.php', 'relative' );
    }

    if ( is_user_logged_in() ) {
        $settings['nonce'] = wp_create_nonce( 'heartbeat-nonce' );
    }

    return $settings;
}