public static function membership_level_id_exists($level_id)
{
//Returns true if the specified membership level exists in the system. Returns false if the level has been deleted (or doesn't exist).
$all_level_ids = SwpmUtils::get_all_membership_level_ids();
if (in_array($level_id, $all_level_ids)) {
//Valid level ID
return true;
} else {
return false;
}
}
