3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $date = new DateTime('2018-12-31'); echo $date->format('Y/W');

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
2018/01
Output for Arrow functions
2018/01
Output for Object typehint
2018/01
Output for Array change keys
2018/01
Output for Lexical anon
2018/01

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