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run code in 300+ PHP versions simultaneously
<?php $a = ['foo' => 'bar']; $b = ['foo' => ['bar' => null, 'buz' => null]]; // you need to fix this or special case int keys $c = ['foo' => ['bar' => 'buz']]; function treeMe($array) { if (!is_array($array) || !$array) { return $array; } $tmp = []; foreach ($array as $k => $v) { $tmp[$k] = treeMe($v); } return $tmp; } var_dump(treeMe($a)); var_dump(treeMe($b)); var_dump(treeMe($c));
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["foo"]=> string(3) "bar" } array(1) { ["foo"]=> array(2) { ["bar"]=> NULL ["buz"]=> NULL } } array(1) { ["foo"]=> array(1) { ["bar"]=> string(3) "buz" } }

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