3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php (function(){ echo 'Hooray for IIFEs!'; })();
Output for 7.0.0 - 7.2.0
Hooray for IIFEs!
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/0nTMl on line 5
Process exited with code 255.