WP_Query::set_404() WordPress Method

	public function set_404() {
		$is_feed = $this->is_feed;

		$this->init_query_flags();
		$this->is_404 = true;

		$this->is_feed = $is_feed;

		/**
		 * Fires after a 404 is triggered.
		 *
		 * @since 5.5.0
		 *
		 * @param WP_Query $query The WP_Query instance (passed by reference).
		 */
		do_action_ref_array( 'set_404', array( $this ) );
	}
Uses	Description
wp-includes/class-wp-query.php:set_404	Fires after a 404 is triggered.
wp-includes/class-wp-query.php:WP_Query::init_query_flags()	Resets query flags to false.
wp-includes/plugin.php:do_action_ref_array()	Calls the callback functions that have been added to an action hook, specifying arguments in an array.
Used By	Description
wp-includes/sitemaps/class-wp-sitemaps.php:WP_Sitemaps::render_sitemaps()	Renders sitemap templates based on rewrite rules.
wp-includes/class-wp.php:WP::handle_404()	Set the Headers for 404, if nothing is found for requested URL.
wp-includes/class-wp-query.php:WP_Query::parse_query()	Parse a query string and set query type booleans.