array(4) {
  ["a"]=>
  string(6) "orange"
  ["d"]=>
  string(5) "lemon"
  ["b"]=>
  string(6) "banana"
  ["c"]=>
  string(5) "apple"
}
array(4) {
  ["a"]=>
  string(6) "orange"
  ["b"]=>
  string(6) "banana"
  ["c"]=>
  string(5) "apple"
  ["d"]=>
  string(5) "lemon"
}
array(4) {
  ["d"]=>
  string(5) "lemon"
  ["c"]=>
  string(5) "apple"
  ["b"]=>
  string(6) "banana"
  ["a"]=>
  string(6) "orange"
}