pre_wp_unique_post_slug │ filter-hook │ WP 5.1.0

Filters the post slug before it is generated to be unique.

Returning a non-null value will short-circuit the unique slug generation, returning the passed value instead.

Usage

add_filter( 'pre_wp_unique_post_slug', 'wp_kama_pre_wp_unique_post_slug_filter', 10, 6 );

/**
 * Function for `pre_wp_unique_post_slug` filter-hook.
 * 
 * @param string|null $override_slug Short-circuit return value.
 * @param string      $slug          The desired slug (post_name).
 * @param int         $post_ID       Post ID.
 * @param string      $post_status   The post status.
 * @param string      $post_type     Post type.
 * @param int         $post_parent   Post parent ID.
 *
 * @return string|null
 */
function wp_kama_pre_wp_unique_post_slug_filter( $override_slug, $slug, $post_ID, $post_status, $post_type, $post_parent ){

	// filter...
	return $override_slug;
}

$override_slug(string|null)

Short-circuit return value.

$slug(string)

The desired slug (post_name).

$post_ID(int)

Post ID.

$post_status(string)

The post status.

$post_type(string)

Post type.

$post_parent(int)

Post parent ID.

Changelog

Where the hook is called

$override_slug = apply_filters( 'pre_wp_unique_post_slug', null, $slug, $post_ID, $post_status, $post_type, $post_parent );

Where the hook is used in WordPress

add_filter( 'pre_wp_unique_post_slug', 'wp_filter_wp_template_unique_post_slug', 10, 5 );