/** * @param $blog_id * @param $old_related * @param $new_related * @param $relations * @param $changed * @return int */ private function delete_unset_relations($blog_id, $old_related, $new_related, SiteRelations $relations, $changed) { // Delete removed relations. foreach ($old_related as $old_blog_id) { if (!in_array($old_blog_id, $new_related)) { $relations->delete_relation($blog_id, $old_blog_id); $changed += 1; } } return $changed; }