$cust_get_num = $db->query('
  SELECT num_digits,num_user_history
  FROM `op_numbers`
  WHERE `num_vip_id` IS NULL AND
  `num_user_id` IS NULL AND
  locate(\'|' . $cust_id . '|\',num_user_history)=0
  LIMIT 1
')->fetchObject();
$cust_num_id_created = $db->lastInsertId();