PHP get_404_template函数代码示例

function getWpTemplate()
{
    if (defined('WP_USE_THEMES') && WP_USE_THEMES) {
        $template = false;
        if (is_404() && ($template = get_404_template())) {
        } elseif (is_search() && ($template = get_search_template())) {
        } elseif (is_tax() && ($template = get_taxonomy_template())) {
        } elseif (is_front_page() && ($template = get_front_page_template())) {
        } elseif (is_home() && ($template = get_home_template())) {
        } elseif (is_attachment() && ($template = get_attachment_template())) {
        } elseif (is_single() && ($template = get_single_template())) {
        } elseif (is_page() && ($template = get_page_template())) {
        } elseif (is_category() && ($template = get_category_template())) {
        } elseif (is_tag() && ($template = get_tag_template())) {
        } elseif (is_author() && ($template = get_author_template())) {
        } elseif (is_date() && ($template = get_date_template())) {
        } elseif (is_archive() && ($template = get_archive_template())) {
        } elseif (is_comments_popup() && ($template = get_comments_popup_template())) {
        } elseif (is_paged() && ($template = get_paged_template())) {
        } else {
            $template = get_index_template();
        }
        return str_replace(ABSPATH, '', $template);
    } else {
        return null;
    }
}

 function redirect_expired()
 {
     global $wp_query;
     if (is_singular()) {
         if ('expired' == $wp_query->post->post_status) {
             if (function_exists('is_syndicated') and is_syndicated($wp_query->post->ID)) {
                 $source = get_syndication_feed_object($wp_query->post->ID);
                 $redirect_url = $source->setting('expired post redirect to', 'expired_post_redirect_to', NULL);
             } else {
                 $redirect_url = get_option('feedwordpress_expired_post_redirect_to', NULL);
             }
             if (!is_null($redirect_url) and strlen(esc_url($redirect_url)) > 0 and 'none' != $redirect_url) {
                 header("HTTP/1.1 301 Moved Permanently");
                 header("Location: " . $redirect_url);
             } else {
                 // Meh.
                 if (!($template = get_404_template())) {
                     $template = get_index_template();
                 }
                 if ($template = apply_filters('template_include', $template)) {
                     header("HTTP/1.1 410 Gone");
                     include $template;
                 }
             }
             exit;
         }
     }
 }

 /**
  * Launch and display the 404 page depending upon the template
  *
  * @param   void
  * @return  void
  **/
 public function throw404()
 {
     // Change WP Query
     global $wp_query;
     $wp_query->set_404();
     status_header(404);
     // Disable that pesky Admin Bar
     add_filter('show_admin_bar', '__return_false', 900);
     remove_action('admin_footer', 'wp_admin_bar_render', 10);
     remove_action('wp_head', 'wp_admin_bar_header', 10);
     remove_action('wp_head', '_admin_bar_bump_cb', 10);
     wp_dequeue_script('admin-bar');
     wp_dequeue_style('admin-bar');
     // Template
     $four_tpl = apply_filters('LD_404', get_404_template());
     // Handle the admin bar
     @define('APP_REQUEST', TRUE);
     @define('DOING_AJAX', TRUE);
     if (empty($four_tpl) or !file_exists($four_tpl)) {
         // We're gonna try and get TwentyTen's one
         $twenty_ten_tpl = apply_filters('LD_404_FALLBACK', WP_CONTENT_DIR . '/themes/twentyfourteen/404.php');
         if (file_exists($twenty_ten_tpl)) {
             require $twenty_ten_tpl;
         } else {
             wp_die('404 - File not found!', '', array('response' => 404));
         }
     } else {
         // Their theme has a template!
         require $four_tpl;
     }
     // Either way, it's gonna stop right here.
     exit;
 }

 private static function get_404_template()
 {
     if (!($template = get_404_template())) {
         $template = get_index_template();
     }
     return $template;
 }

 /**
  * Copy-pasta of wp-includes/template-loader.php
  */
 private function load_template()
 {
     do_action('template_redirect');
     $template = false;
     if (is_404() && ($template = get_404_template())) {
     } elseif (is_search() && ($template = get_search_template())) {
     } elseif (is_front_page() && ($template = get_front_page_template())) {
     } elseif (is_home() && ($template = get_home_template())) {
     } elseif (is_post_type_archive() && ($template = get_post_type_archive_template())) {
     } elseif (is_tax() && ($template = get_taxonomy_template())) {
     } elseif (is_attachment() && ($template = get_attachment_template())) {
         remove_filter('the_content', 'prepend_attachment');
     } elseif (is_single() && ($template = get_single_template())) {
     } elseif (is_page() && ($template = get_page_template())) {
     } elseif (is_category() && ($template = get_category_template())) {
     } elseif (is_tag() && ($template = get_tag_template())) {
     } elseif (is_author() && ($template = get_author_template())) {
     } elseif (is_date() && ($template = get_date_template())) {
     } elseif (is_archive() && ($template = get_archive_template())) {
     } elseif (is_comments_popup() && ($template = get_comments_popup_template())) {
     } elseif (is_paged() && ($template = get_paged_template())) {
     } else {
         $template = get_index_template();
     }
     /**
      * Filter the path of the current template before including it.
      *
      * @since 3.0.0
      *
      * @param string $template The path of the template to include.
      */
     if ($template = apply_filters('template_include', $template)) {
         $template_contents = file_get_contents($template);
         $included_header = $included_footer = false;
         if (false !== stripos($template_contents, 'get_header();')) {
             do_action('get_header', null);
             locate_template('header.php', true, false);
             $included_header = true;
         }
         include $template;
         if (false !== stripos($template_contents, 'get_footer();')) {
             do_action('get_footer', null);
             locate_template('footer.php', true, false);
             $included_footer = true;
         }
         if ($included_header && $included_footer) {
             global $wp_scripts;
             $wp_scripts->done = array();
         }
     }
     return;
 }

 static function login_to_notfound()
 {
     if (isset($_REQUEST['logout'])) {
         return;
     }
     if (preg_match('/wp-login.php/', $_SERVER['REQUEST_URI'])) {
         if ($_REQUEST['action'] == 'register' || $_REQUEST['action'] == 'login') {
             $template = get_404_template();
             include $template;
             exit;
         }
     }
 }

 /**
  * Sets a 404 error for wp-login.php if it's disabled
  *
  * @since 6.3
  * @access public
  */
 public function init()
 {
     global $wp_query, $pagenow;
     if ('wp-login.php' == $pagenow && $this->get_option('private_login')) {
         $pagenow = 'index.php';
         $wp_query->set_404();
         status_header(404);
         nocache_headers();
         if (!($template = get_404_template())) {
             $template = 'index.php';
         }
         include $template;
         exit;
     }
 }

/**
 * Function to prevent visitors without admin permissions
 * to access the wordpress backend. If you wish to permit
 * others besides admins acces, change the user_level
 * to a different number.
 *
 * http://codex.wordpress.org/Roles_and_Capabilities#level_8
 *
 * @global <type> $user_level
 *
 * in order to use this for wpmu, you need to follow the comment
 * instructions below in all locations and make the changes
 */
function jr_security_check()
{
    $jr_access_level = get_option('jr_admin_security');
    if (!isset($jr_access_level) || $jr_access_level == '') {
        $jr_access_level = 'read';
    }
    // if there's no value then give everyone access
    if (!current_user_can($jr_access_level)) {
        // comment out the above two lines and uncomment this line if you are using
        // wpmu and want to block back office access to everyone except admins
        // if (!is_site_admin()) {
        status_header(404);
        nocache_headers();
        include get_404_template();
        exit;
    }
}

 /**
  * Include store template
  *
  * @param type $template
  * @return string
  */
 function store_template($template)
 {
     $store_name = get_query_var('store');
     if (!empty($store_name)) {
         $store_user = get_user_by('slug', $store_name);
         // no user found
         if (!$store_user) {
             return get_404_template();
         }
         // check if the user is seller
         if (!dokan_is_user_seller($store_user->ID)) {
             return get_404_template();
         }
         $templates = array("store-{$store_name}.php", 'store.php');
         return get_query_template('store', $templates);
     }
     return $template;
 }

 /**
  * Pick the correct template to include
  *
  * @param string $template Path to template
  *
  * @return string Path to template
  */
 public static function templateChooser($template)
 {
     $events = Tribe__Events__Main::instance();
     do_action('tribe_tec_template_chooser', $template);
     // no non-events need apply
     if (!tribe_is_event_query()) {
         return $template;
     }
     // if it's a single 404 event
     if (is_single() && is_404()) {
         return get_404_template();
     }
     if (!is_single() && !tribe_events_is_view_enabled($events->displaying) && 'day' != $events->displaying) {
         return get_404_template();
     }
     // add the theme slug to the body class
     add_filter('body_class', array(__CLASS__, 'theme_body_class'));
     // add the template name to the body class
     add_filter('body_class', array(__CLASS__, 'template_body_class'));
     // user has selected a page/custom page template
     if (tribe_get_option('tribeEventsTemplate', 'default') != '') {
         if (!is_single() || !post_password_required()) {
             add_action('loop_start', array(__CLASS__, 'setup_ecp_template'));
         }
         $template = locate_template(tribe_get_option('tribeEventsTemplate', 'default') == 'default' ? 'page.php' : tribe_get_option('tribeEventsTemplate', 'default'));
         if ($template == '') {
             $template = get_index_template();
         }
         // remove singular body class if sidebar-page.php
         if ($template == get_stylesheet_directory() . '/sidebar-page.php') {
             add_filter('body_class', array(__CLASS__, 'remove_singular_body_class'));
         } else {
             add_filter('body_class', array(__CLASS__, 'add_singular_body_class'));
         }
     } else {
         $template = self::getTemplateHierarchy('default-template');
     }
     // if this is an oembed, override the wrapping template and use the embed template
     if (Tribe__Templates::is_embed()) {
         $template = self::getTemplateHierarchy('embed');
     }
     self::$template = $template;
     return $template;
 }

/**
 * Function to prevent visitors without admin permissions
 * to access the wordpress backend. If you wish to permit
 * others besides admins acces, change the user_level
 * to a different number.
 *
 * http://codex.wordpress.org/Roles_and_Capabilities#level_8
 *
 * @global <type> $user_level
 *
 * in order to use this for wpmu, you need to follow the comment
 * instructions below in all locations and make the changes
 */
function colabs_security_check()
{
    // secure the backend for non ajax calls
    if (isset($_SERVER['SCRIPT_NAME']) && basename($_SERVER['SCRIPT_NAME']) != 'admin-ajax.php') {
        $colabs_access_level = get_option('colabs_admin_security');
    }
    if (!isset($colabs_access_level) || $colabs_access_level == '') {
        $colabs_access_level = 'read';
    }
    // if there's no value then give everyone access
    if (is_user_logged_in() && !current_user_can($colabs_access_level)) {
        // comment out the above two lines and uncomment this line if you are using
        // wpmu and want to block back office access to everyone except admins
        // if (!is_site_admin()) {
        status_header(404);
        nocache_headers();
        include get_404_template();
        exit;
    }
}

/**
 * Load the 404 Not Found error page and display it (optional)
 *
 * @param bool $redirect Redirect browser to the page?
 * @param bool $display Display the page?
 * @since WP_Basic_Bootstrap 1.0
 */
function set_error_404($redirect = true, $display = false)
{
    /* @var $wp_query \WP_Query */
    global $wp_query;
    $wp_query->set_404();
    $status = basicbootstrap_get_status();
    if ($redirect && $status != 404) {
        wp_redirect(site_url('?error=404'));
    } elseif ($display) {
        status_header(404);
        nocache_headers();
        $tpl = get_404_template();
        if (!empty($tpl)) {
            include $tpl;
        } else {
            echo '<p>Page not found!</p>';
        }
        exit;
    }
}

function xtreme_get_template()
{
    global $wp;
    if (defined('WP_USE_THEMES') && constant('WP_USE_THEMES')) {
        if (is_404() && ($template = get_404_template())) {
            return redefine_pagenow($template);
        } elseif (is_search() && ($template = get_search_template())) {
            return redefine_pagenow($template);
        } elseif (is_tax() && ($template = get_taxonomy_template())) {
            return redefine_pagenow($template);
        } elseif (is_front_page() && ($template = get_front_page_template())) {
            return redefine_pagenow($template);
        } elseif (is_home() && ($template = get_home_template())) {
            return redefine_pagenow($template);
        } elseif (is_attachment() && ($template = get_attachment_template())) {
            return redefine_pagenow($template);
        } elseif (is_single() && ($template = get_single_template())) {
            return redefine_pagenow($template);
        } elseif (is_page() && ($template = get_page_template())) {
            return redefine_pagenow($template);
        } elseif (is_category() && ($template = get_category_template())) {
            return redefine_pagenow($template);
        } elseif (is_tag() && ($template = get_tag_template())) {
            return redefine_pagenow($template);
        } elseif (is_author() && ($template = get_author_template())) {
            return redefine_pagenow($template);
        } elseif (is_date() && ($template = get_date_template())) {
            return redefine_pagenow($template);
        } elseif (is_archive() && ($template = get_archive_template())) {
            return redefine_pagenow($template);
        } elseif (is_comments_popup() && ($template = get_comments_popup_template())) {
            return redefine_pagenow($template);
        } elseif (is_paged() && ($template = get_paged_template())) {
            return redefine_pagenow($template);
        } else {
            $template = get_index_template();
            return redefine_pagenow($template);
        }
    }
}

 /**
  * Get the fork's parent post, set up a query, and load correct template.
  *
  * Duplicates the functionality of /wp-includes/template-loader.php and includes
  * a lot of copypasta, but that's only to ensure that it follows the same logic.
  *
  */
 function choose_template()
 {
     $p = get_queried_object_id();
     if (get_post_type($p) !== 'fork') {
         return;
     }
     $pp = get_post($p)->post_parent;
     $parent = get_post($pp);
     if ($parent->post_type == 'page') {
         $query = array('page_id' => $pp);
     } else {
         $query = array('p' => $pp);
     }
     $t = new WP_Query($query);
     $template = false;
     if ($t->is_404() && ($template = get_404_template())) {
     } elseif ($t->is_search() && ($template = get_search_template())) {
     } elseif ($t->is_tax() && ($template = get_taxonomy_template())) {
     } elseif ($t->is_front_page() && ($template = get_front_page_template())) {
     } elseif ($t->is_home() && ($template = get_home_template())) {
     } elseif ($t->is_attachment() && ($template = get_attachment_template())) {
         remove_filter('the_content', 'prepend_attachment');
     } elseif ($t->is_single() && ($template = get_single_template())) {
     } elseif ($t->is_page && ($template = get_page_template())) {
     } elseif ($t->is_category() && ($template = get_category_template())) {
     } elseif ($t->is_tag() && ($template = get_tag_template())) {
     } elseif ($t->is_author() && ($template = get_author_template())) {
     } elseif ($t->is_date() && ($template = get_date_template())) {
     } elseif ($t->is_archive() && ($template = get_archive_template())) {
     } elseif ($t->is_comments_popup() && ($template = get_comments_popup_template())) {
     } elseif ($t->is_paged() && ($template = get_paged_template())) {
     } else {
         $template = get_index_template();
     }
     if ($template = apply_filters('template_include', $template)) {
         include $template;
     }
     return;
 }

 function check_template()
 {
     if (is_404() && ($template = get_404_template())) {
         $this->template = $template;
     } elseif (is_search() && ($template = get_search_template())) {
         $this->template = $template;
     } elseif (is_tax() && ($template = get_taxonomy_template())) {
         $this->template = $template;
     } elseif (is_home() && ($template = get_home_template())) {
         $this->template = $template;
     } elseif (is_attachment() && ($template = get_attachment_template())) {
         $this->template = $template;
     } elseif (is_single() && ($template = get_single_template())) {
         $this->template = $template;
     } elseif (is_page() && ($template = get_page_template())) {
         $this->template = $template;
     } elseif (is_category() && ($template = get_category_template())) {
         $this->template = $template;
     } elseif (is_tag() && ($template = get_tag_template())) {
         $this->template = $template;
     } elseif (is_author() && ($template = get_author_template())) {
         $this->template = $template;
     } elseif (is_date() && ($template = get_date_template())) {
         $this->template = $template;
     } elseif (is_archive() && ($template = get_archive_template())) {
         $this->template = $template;
     } elseif (is_comments_popup() && ($template = get_comments_popup_template())) {
         $this->template = $template;
     } elseif (is_paged() && ($template = get_paged_template())) {
         $this->template = $template;
     } else {
         $this->template = function_exists('get_index_template') ? get_index_template() : TEMPLATEPATH . "/index.php";
     }
     $this->template = apply_filters('template_include', $this->template);
     // Hook into the footer so we can echo the active template
     add_action('wp_footer', array(&$this, 'show_template'), 100);
 }