3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = &$row['test']; print_r($row);

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

Output for branch master
Array ( [test] => )

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