3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo shell_exec("echo $PATH");
Output for 5.5.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: PATH in /in/shQu0 on line 2
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: PATH in /in/shQu0 on line 2 Failed to exec: `echo '
Output for 4.3.0 - 5.4.45