3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php system("busybox"); ?>
Output for 7.0.14 - 7.2.6
Output for 4.3.2 - 7.0.10
Warning: system(): Unable to fork [busybox] in /in/VrguS on line 3
Output for 4.3.0 - 4.3.1
Warning: system() [http://www.php.net/function.system]: Unable to fork [busybox] in /in/VrguS on line 3