1--TEST-- 2Bug #74852 property_exists returns true on unknown DateInterval property 3--FILE-- 4<?php 5 6$interval = new DateInterval('P2D'); 7var_dump(property_exists($interval,'abcde')); 8var_dump(isset($interval->abcde)); 9var_dump($interval->abcde); 10 11?> 12--EXPECTF-- 13bool(false) 14bool(false) 15 16Warning: Undefined property: DateInterval::$abcde in %s on line %d 17NULL 18