3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo passthru(id);
based on JbgcF
Output for 4.3.0, 5.4.39 - 5.6.28, 7.0.0 - 7.1.0
Notice: Use of undefined constant id - assumed 'id' in /in/IRYa0 on line 2
Output for hhvm-3.10.0 - 3.12.0
Notice: Use of undefined constant id - assumed 'id' in /in/IRYa0 on line 2 Failed to exec: `id'
Output for 4.3.1 - 5.4.38
Notice: Use of undefined constant id - assumed 'id' in /in/IRYa0 on line 2 sh: 1: id: not found