1--TEST-- 2Bug #53437 (Crash when using unserialized DatePeriod instance), variation 2 3--FILE-- 4<?php 5$s = 'O:10:"DatePeriod":0:{}'; 6 7$dp = unserialize($s); 8 9var_dump($dp); 10?> 11==DONE== 12--EXPECTF-- 13Fatal error: Invalid serialization data for DatePeriod object in %sbug53437_var1.php on line %d 14