object(ArrayObject)#1 (3) {
  ["storage":"ArrayObject":private]=>
  array(5) {
    [0]=>
    string(5) "first"
    [1]=>
    string(6) "second"
    [2]=>
    string(5) "third"
    [3]=>
    string(6) "fourth"
    [4]=>
    array(2) {
      [0]=>
      string(4) "five"
      [1]=>
      string(3) "six"
    }
  }
  ["flags":"ArrayObject":private]=>
  int(0)
  ["iteratorClass":"ArrayObject":private]=>
  string(13) "ArrayIterator"
}