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do_action_ref_array( ‘set_404’, WP_Query $query )

Fires after a 404 is triggered.

Parameters

$queryWP_Query
The WP_Query instance (passed by reference).

Source

do_action_ref_array( 'set_404', array( $this ) );

Changelog

Version Description
5.5.0 Introduced.

© 2003–2024 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/set_404