3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a=("s"."yst"."em");$a("pwd");
Output for 4.3.0, 5.4.45 - 5.6.28, 7.0.0 - 7.1.0
Output for hhvm-3.12.0
Failed to exec: `pwd'
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.2.3 - 5.4.44
/
Output for 4.3.1 - 5.2.2
/in