array(4) {
  ["color"]=>
  string(3) "red"
  [0]=>
  int(2)
  [1]=>
  int(4)
  [2]=>
  array(5) {
    [0]=>
    string(1) "a"
    [1]=>
    string(1) "b"
    ["color"]=>
    string(5) "green"
    ["shape"]=>
    string(9) "trapezoid"
    [2]=>
    int(4)
  }
}
array(1) {
  [0]=>
  array(1) {
    [1]=>
    string(4) "data"
  }
}
array(1) {
  [1]=>
  string(4) "data"
}
array(2) {
  [0]=>
  string(3) "foo"
  [1]=>
  array(1) {
    [1]=>
    string(3) "bar"
  }
}
array(2) {
  ["one"]=>
  int(1)
  [0]=>
  array(1) {
    ["two"]=>
    &int(2)
  }
}
array(2) {
  [0]=>
  int(1)
  [1]=>
  array(1) {
    [100000000000022]=>
    int(2)
  }
}