WordPress at a glance
filter is not described

old_slug_redirect_post_id filter-hook . WP 4.9.3

Filters the old slug redirect post ID.

Usage

add_filter( 'old_slug_redirect_post_id', 'filter_function_name_431' );
function filter_function_name_431( $id ){
	// filter...

	return $id;
}
$id(int)
The redirect post ID.

Changelog

Since 4.9.3 Introduced.

Where the hook is called

wp_old_slug_redirect()
old_slug_redirect_post_id
wp-includes/query.php 1050
$id = apply_filters( 'old_slug_redirect_post_id', $id );

Where in WP core the hook is used

Usage not found!