3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo $wat; unset($wat); echo $wat;
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: wat in /in/JpGNc on line 2 Notice: Undefined variable: wat in /in/JpGNc on line 4
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: wat in /in/JpGNc on line 2 Notice: Undefined variable: wat in /in/JpGNc on line 4