3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php system("echo $PATH");
Output for 5.0.4 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: PATH in /in/Se8W6 on line 2
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: PATH in /in/Se8W6 on line 2 Failed to exec: `echo '
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: PATH in /in/Se8W6 on line 2