3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "10 kB"; $b = "5 kB"; $c = $a-$b; echo $c; var_dump($_REQUEST); ?>
based on A0m1S

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/e53ni on line 4 Notice: A non well formed numeric value encountered in /in/e53ni on line 4 5array(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