3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo BOS;
based on 3dWZh
Output for 7.2.0 - 7.3.0beta1
Warning: Use of undefined constant BOS - assumed 'BOS' (this will throw an Error in a future version of PHP) in /in/RGfDC on line 3 BOS
Output for 5.6.30, hhvm-3.18.5 - 3.21.3, 7.0.30 - 7.1.20
Notice: Use of undefined constant BOS - assumed 'BOS' in /in/RGfDC on line 3 BOS
Output for hhvm-3.22.0
Notice: Use of undefined constant BOS - assumed 'BOS' in /in/RGfDC on line -1 BOS