3v4l.org

run code in 200+ PHP versions simultaneously
<?php $class = null; var_dump($class->gggg ?? false);

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

Output for branch php-master
bool(false)
Output for branch php-master+opcache
bool(false)

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