3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $h = null; for($i=0; $i<100; $i++) { $h = new stdClass(array('pack' => $h)); } var_dump($h);
Output for 5.0.0 - 7.2.0
object(stdClass)#2 (0) { }
Output for 4.3.0 - 4.4.9
object(stdClass)(0) { }