run code in 300+ PHP versions simultaneously
<?php function gimmeFalse() : false { return false; } var_dump(gimmeFalse());

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for branch master
Fatal error: False can not be used as a standalone type in /in/MqsvC on line 3
Process exited with code 255.

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page