3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo shell_exec("whereis ls");
based on MpNUZ
Output for 4.3.0, 5.4.39 - 7.1.7, 7.2.0
Output for 7.1.10

Process exited with code 137.
Output for 4.3.1 - 5.4.38
sh: 1: whereis: not found