3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = 1; if (isset($z) || $z == 5) echo 'not set';
based on e3W5A
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: z in /in/m01S1 on line 5
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: z in /in/m01S1 on line 5