3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php shell_exec(w); ?>
Output for 7.2.0
Warning: Use of undefined constant w - assumed 'w' (this will throw an Error in a future version of PHP) in /in/36WMI on line 2
Output for 4.3.0 - 7.1.10
Notice: Use of undefined constant w - assumed 'w' in /in/36WMI on line 2