3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo PI; ?>
based on a5kCe
Output for 7.2.0
Warning: Use of undefined constant PI - assumed 'PI' (this will throw an Error in a future version of PHP) in /in/bPPlY on line 3 PI
Output for 4.3.0 - 7.1.10
Notice: Use of undefined constant PI - assumed 'PI' in /in/bPPlY on line 3 PI