3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo waa;
Output for 7.2.0
Warning: Use of undefined constant waa - assumed 'waa' (this will throw an Error in a future version of PHP) in /in/Y4gmo on line 2 waa
Output for 4.3.0 - 7.1.10
Notice: Use of undefined constant waa - assumed 'waa' in /in/Y4gmo on line 2 waa