3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = new StdClass(); switch (true) { case $a instance of StdClass: { echo "caught it"; break; } default : { echo "default"; } }

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

Output for Arrow functions
Parse error: syntax error, unexpected 'instance' (T_STRING) in /in/CrVmH on line 7

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