Online PHP editor | output for 9VJOI

<?php $blah= array(array('a'=> 1, 'b' => array('inner' => 2, 'alias' => 'blah'))); $blank = array(); function _test(&$test, &$blank) { foreach ($test as $key => $value) { if (is_array($value) === false) continue; if (isset($value['alias']) === true) { $clonedArray = array(); $clonedArray = array_merge($clonedArray, $test); unset($clonedArray[$key]['a']); $blank[$value['alias']] = $clonedArray; } if (isset($value['isalias']) === true) { $test[$key] = $blank[$value['alias']]; } if (is_array($value) === true){ _test($test[$key], $blank); } } } _test($blah, $blank); var_dump($blah);