3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $o1 = new stdClass(); $o2 = new stdClass($a = $o1); var_dump($a);
Output for 7.1.0
object(stdClass)#1 (0) { }
Output for 5.0.4 - 7.0.14
Notice: Undefined variable: a in /in/LQH1S on line 4 NULL
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: a in /in/LQH1S on line 4 NULL