3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo dupa;
Output for 7.2.0
Warning: Use of undefined constant dupa - assumed 'dupa' (this will throw an Error in a future version of PHP) in /in/PtQQc on line 2 dupa
Output for 4.3.0 - 7.1.7
Notice: Use of undefined constant dupa - assumed 'dupa' in /in/PtQQc on line 2 dupa