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PATH: home / fengshp / www / wp-content / themes / themify-ultra / themify

<?php
/**
 * Enable using a custom page as 404 page
 *
 * @package    Themify_Builder
 * @subpackage Themify_Builder/classes
 */
class Themify_Custom_404 {

private static $is_custom_404 = false;

public static function init() {
        if ( is_404() && self::get_page() ) {

/* do redirect_canonical early, handles all redirects needed for WP before changing the query */
            redirect_canonical();
            remove_filter( 'template_redirect', 'redirect_canonical' );

/* Redirection plugin, log 404 visits
             * @link https://wordpress.org/plugins/redirection/
             */
            if ( class_exists( 'Redirection', false ) ) {
                $module = Red_Module::get( WordPress_Module::MODULE_ID )->template_redirect();
            }

/* replace the 404 query with a custom WP_Query that displays the chosen page */
            global $wp_query, $wp_the_query;
            $wp_query = $wp_the_query = self::get_404_query();
            $posts = $wp_query->posts;
            $wp_query->rewind_posts();

self::$is_custom_404 = true;

self::set_headers();

add_filter( 'body_class', [ __CLASS__, 'body_class' ] );
        }
    }
        
    /**
     * Get the 404 page
     *
     * @return WP_Post|false
     */
    public static function get_page() {
        static $id = null;
        if ( $id === null ) {
            $id = (int) themify_get( 'setting-page_404', false, true );
            if ( $id !== 0 ) {
                $id = themify_maybe_translate_object_id( $id );
                $id = ! empty( $id ) ? get_post( $id ) : false;
            }
        }

return $id;
    }

private static function get_404_query() {
        $query = new WP_Query();
        $query->query( array(
            'page_id' => self::get_page()->ID,
            'suppress_filters' => true,
        ) );
        $query->the_post();

return $query;
    }

private static function set_headers() {
        status_header( 404 );
        nocache_headers();
    }

public static function body_class( $classes ) {
        $classes[] = 'error404';

return $classes;
    }

/**
     * Helper function, returns true only if is_404 and is using custom page
     *
     * @return bool
     */
    public static function is_custom_404() {
        return self::$is_custom_404 === true;
    }
}
add_action( 'template_redirect', [ 'Themify_Custom_404', 'init' ], 0 );

[+] ..
[+] js
[-] class-tf-term-image.php [edit]
[-] themify-import-functions.php [edit]
[-] class-themify-enqueue.php [edit]
[-] themify-hooks.php [edit]
[-] class-themify-storage.php [edit]
[+] themify-icon-picker
[-] class-themify-child-theme-generator.php [edit]
[-] class-themify-menu-toggle-dropdown.php [edit]
[+] google-fonts
[-] themify-widgets.php [edit]
[-] themify-microdata.php [edit]
[+] themify-builder
[-] themify-theme-filters.php [edit]
[+] megamenu
[-] class-cpt.php [edit]
[-] class-themify-custom-404.php [edit]
[-] themify-status.php [edit]
[-] class-themify-maintenance-mode.php [edit]
[-] themify-template-tags.php [edit]
[-] themify-config.php [edit]
[-] class-themify-access-role.php [edit]
[+] themify-metabox
[+] customizer
[+] cache
[-] themify-wpajax.php [edit]
[+] img
[-] img.php [edit]
[-] class-themify-custom-fonts.php [edit]
[+] plugin-compat
[-] class-themify-menu-icons.php [edit]
[-] class-themify-filesystem.php [edit]
[-] class-themify-mobile-detect.php [edit]
[-] themify-fw-filters.php [edit]
[-] class-hook-contents.php [edit]
[-] themify-utils.php [edit]
[-] class-tgm-plugin-activation.php [edit]
[-] themify-admin.php [edit]
[-] class-themify-get-image-size.php [edit]
[-] themify-startup-check.php [edit]
[+] includes
[+] .data
[-] themify-database.php [edit]
[+] css
[+] themify-icons