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<?php $array = ''; initArray($array); initArray($array['a']); $array['a']['b'] = 1; function initArray(&$node) { if ($node === '') { $node = array(); } } var_dump($array);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["a"]=> array(1) { ["b"]=> int(1) } }

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