apply_filters( ‘pre_redirect_guess_404_permalink’, null|string|false $pre )

Short-circuits the redirect URL guessing for 404 requests.

Description

Returning a non-null value from the filter will effectively short-circuit the URL guessing, returning the passed value instead.

$prenull|string|false: Whether to short-circuit guessing the redirect for a 404.
Default null to continue with the URL guessing.

$pre = apply_filters( 'pre_redirect_guess_404_permalink', null );

Used by	Description
redirect_guess_404_permalink()`wp-includes/canonical.php`	Attempts to guess the correct URL for a 404 request based on query vars.

Version	Description
5.5.0	Introduced.

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