3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x[0] = "sys"."tem"; $x[0]("cat $(pwd)../../../../tmp/loldongs");
Output for 4.3.0, 5.4.45 - 7.1.0
Output for 4.3.1 - 5.4.44
sh: 1: cat: not found