3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo date(H);
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant H - assumed 'H' (this will throw an Error in a future version of PHP) in /in/uKmjS on line 2 16
Output for 5.5.0 - 7.1.20
Notice: Use of undefined constant H - assumed 'H' in /in/uKmjS on line 2 16