3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo window;
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant window - assumed 'window' (this will throw an Error in a future version of PHP) in /in/CjR82 on line 2 window
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant window - assumed 'window' in /in/CjR82 on line 2 window