3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo derp;
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant derp - assumed 'derp' (this will throw an Error in a future version of PHP) in /in/dDt3W on line 3 derp
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant derp - assumed 'derp' in /in/dDt3W on line 3 derp