delete_post_meta_by_key()WP 2.3.0

Deletes everything from post meta matching the given meta key.

No Hooks.

Return

true|false. Whether the post meta key was deleted from the database.

Usage

delete_post_meta_by_key( $post_meta_key );
$post_meta_key(string) (required)
Key to search for when deleting.

Changelog

Since 2.3.0 Introduced.

delete_post_meta_by_key() code WP 6.4.3

function delete_post_meta_by_key( $post_meta_key ) {
	return delete_metadata( 'post', null, $post_meta_key, '', true );
}