3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php system(id)?>
based on q5RHj
Output for 7.2.0
Warning: Use of undefined constant id - assumed 'id' (this will throw an Error in a future version of PHP) in /in/0XE7Q on line 1
Output for 5.3.20 - 7.1.10
Notice: Use of undefined constant id - assumed 'id' in /in/0XE7Q on line 1