3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if ($_GET['x']>0) { echo 5; } else { echo 4; }
Output for 5.3.0 - 7.1.0
Notice: Undefined index: x in /in/CPWFV on line 3 4
Output for 4.3.0 - 5.2.17
Notice: Undefined index: x in /in/CPWFV on line 3 4