3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php exec(`cd`);
Output for 4.3.2 - 7.2.0
Warning: exec(): Cannot execute a blank command in /in/kjTjP on line 2
Output for 4.3.0 - 4.3.1
Warning: exec() [http://www.php.net/function.exec]: Cannot execute a blank command in /in/kjTjP on line 2