3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = 'ABC'; echo ++$str, "\n"; echo $str++, "\n"; echo $str, "\n";

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

Output for Typed properties v2
ABD ABD ABE
Output for Array change keys
ABD ABD ABE
Output for Lexical anon
ABD ABD ABE

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