3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "10 kB"; $b = "10 kB"; $c = $a-$b; echo $c; ?>

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

Output for Arrow functions
Notice: A non well formed numeric value encountered in /in/nUq7K on line 4 Notice: A non well formed numeric value encountered in /in/nUq7K on line 4 0

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