3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x['a']['b']['c']['d']['e']='y'; $x['aaa']='FirstLevel'; $x['a']['_parent'] = &$x; $x['a']['b']['_parent'] = &$x['a']; $x['a']['b']['c']['_parent'] = &$x['a']['b']; $x['a']['b']['c']['d']['_parent'] = &$x['a']['b']['c']; var_dump($x);
Output for 5.3.3 - 5.6.28, 7.0.0 - 7.1.0
array(2) { ["a"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" }
Output for hhvm-3.12.0
array(2) { ["a"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["c"]=> *RECURSION* ["_parent"]=> &array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } } ["_parent"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["c"]=> *RECURSION* ["_parent"]=> *RECURSION* } } } ["_parent"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.3.2
array(2) { ["a"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["c"]=> *RECURSION* ["_parent"]=> &array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } } ["_parent"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> &array(2) { ["b"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["c"]=> *RECURSION* ["_parent"]=> *RECURSION* } } } ["_parent"]=> &array(2) { ["c"]=> &array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" }
Output for 5.2.14 - 5.2.17
array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" }
Output for 5.1.0 - 5.2.13
array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> *RECURSION* ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> *RECURSION* ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> *RECURSION* ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> *RECURSION* ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(1) { ["e"]=> string(1) "y" } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> &array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" }
Output for 4.3.0 - 5.0.5
array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["c"]=> *RECURSION* ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } } ["_parent"]=> array(2) { ["c"]=> array(2) { ["d"]=> array(2) { ["e"]=> string(1) "y" ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> array(2) { ["a"]=> *RECURSION* ["aaa"]=> string(10) "FirstLevel" } } } ["_parent"]=> array(2) { ["a"]=> array(2) { ["b"]=> array(2) { ["c"]=> array(1) { ["d"]=> array(1) { ["e"]=> string(1) "y" } } ["_parent"]=> *RECURSION* } ["_parent"]=> *RECURSION* } ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" } } ["aaa"]=> string(10) "FirstLevel" }