3v4l.org

run code in 300+ PHP versions simultaneously
<?php function timesTwo($num, $callback) { $num = $num*2; echo "num from timesTwo: ".$num.PHP_EOL; return call_user_func($callback, $num); } function addOne($num) { echo 'Num from add 1: '.$num.PHP_EOL; return $num + 1; } echo timesTwo(5, 'addOne'); ?>
Output for git.master_jit, git.master, rfc.property-hooks
num from timesTwo: 10 Num from add 1: 10 11

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

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

preferences:
68.62 ms | 401 KiB | 8 Q