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run code in 200+ php & hhvm versions
Bugs & Features
<?php $ar = array("re" => 12, "er" => 44, "rt" => array('rt' => 55,'tt' => 66) ); $er = $ar['ss'] ?: null; $re = $er ?: $ar['re'] ? $ar['rt'] : $ar['rt']['rt']; print_r($re);
based on j7vaN

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