3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = 1; if ($z != 5 || !isset($x)) echo 'not set';
based on C76O3
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: z in /in/AUtc5 on line 5 not set
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: z in /in/AUtc5 on line 5 not set