WP_Query::set_404()

Sets the 404 property and saves whether query is feed.

Source

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 ) );
}

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Hooks

do_action_ref_array( ‘set_404’, WP_Query $query ): Fires after a 404 is triggered.

Uses	Description
WP_Query::init_query_flags()`wp-includes/class-wp-query.php`	Resets query flags to false.
do_action_ref_array()`wp-includes/plugin.php`	Calls the callback functions that have been added to an action hook, specifying arguments in an array.

Used by	Description
WP_Sitemaps::render_sitemaps()`wp-includes/sitemaps/class-wp-sitemaps.php`	Renders sitemap templates based on rewrite rules.
WP::handle_404()`wp-includes/class-wp.php`	Set the Headers for 404, if nothing is found for requested URL.
WP_Query::parse_query()`wp-includes/class-wp-query.php`	Parses a query string and sets query type booleans.

Changelog

Version	Description
2.0.0	Introduced.

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WP_Query::set_404()

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