3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print_r(exec('ls'));
Output for 5.5.24 - 7.1.0
Output for 4.3.2 - 5.4.45
Warning: exec(): Unable to fork [ls] in /in/58X10 on line 2
Output for 4.3.0 - 4.3.1
Warning: exec() [http://www.php.net/function.exec]: Unable to fork [ls] in /in/58X10 on line 2