Menu Adam R Brown

WP hooks navigation: Home/browseActions indexFilters index

Source View: pre_handle_404

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
634            *
635            * Returning a non-false value from the filter will short-circuit the handling
636            * and return early.
637            *
638            * @since 4.5.0
639            *
640            * @param bool     $preempt  Whether to short-circuit default header status handling. Default false.
641            * @param WP_Query $wp_query WordPress Query object.
642            */
643           if ( false !== apply_filters( 'pre_handle_404', false, $wp_query ) ) {
644                return;
645           }
646
647           // If we've already issued a 404, bail.
648           if ( is_404() )
649                return;
650
651           // Never 404 for the admin, robots, or if we found posts.
652           if ( is_admin() || is_robots() || $wp_query->posts ) {