array(6) {
  [0]=>
  string(2) "ml"
  [1]=>
  string(4) "m116"
  [2]=>
  string(4) "m115"
  [3]=>
  string(4) "m116"
  [4]=>
  string(3) "old"
  [5]=>
  string(2) "b1"
}