Online PHP editor | output for cjZdW

<?php //Source: https://bugs.php.net/bug.php?id=53437 dp = new DatePeriod(new DateTime('2010-01-01 UTC'), new DateInterval('P1D'), 2); echo "Original:\r\n"; foreach($dp as $dt) { echo $dt->format('Y-m-d H:i:s')."\r\n"; } echo "\r\n"; $ser = serialize($dp); // $ser is: O:10:"DatePeriod":0:{} // Create dangerous instance $dpu = unserialize($ser); // $dpu has invalid values… echo "Unserialized:\r\n"; // …which leads to CRASH: foreach($dpu as $dt) { echo $dt->format('Y-m-d H:i:s')."\r\n"; }