3v4l.org

run code in 300+ PHP versions simultaneously
<?php $p = null; $action = $p ?? 'index_null'; echo $action."\n"; $p = false; $action = $p ?? 'index_false'; echo $action."\n"; $p = 0; $action = $p ?? 'index_zero'; echo $action."\n"; $p = "0"; $action = $p ?? 'index_0'; echo $action."\n";
Output for git.master, git.master_jit, rfc.property-hooks
index_null 0 0

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

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


preferences:
42.91 ms | 401 KiB | 8 Q