3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php (function () { echo 'foo'; })();
Output for 7.0.0 - 7.2.0
foo
Output for 5.3.20 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/PV7d2 on line 5
Process exited with code 255.