3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php system("ls");
Output for 4.3.0 - 5.6.24, 5.6.26 - 5.6.29, 7.0.0 - 7.1.0
Output for hhvm-3.10.0 - 3.13.2
Failed to exec: `ls'
Output for 5.6.25

Process exited with code 137.