1--TEST-- 2Trying to create a reference to an overwritten declared property 3--FILE-- 4<?php 5$str = <<<STR 6O:9:"Attribute":1:{s:5:"flags";i:63;s:5:"flags";R:2} 7STR; 8var_dump(unserialize($str)); 9?> 10--EXPECTF-- 11Notice: unserialize(): Error at offset 36 of 52 bytes in %s on line %d 12bool(false) 13