do_action_ref_array( 'set_404', WP_Query $query )

Fires after a 404 is triggered.

Parameters

$query

(WP_Query) The WP_Query instance (passed by reference).

Source

File: wp-includes/class-wp-query.php

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Used By

Used By Description
wp-includes/class-wp-query.php: WP_Query::set_404()

Sets the 404 property and saves whether query is feed.

Changelog

Version Description
5.5.0 Introduced.

© 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/set_404