3v4l.org

run code in 300+ PHP versions simultaneously
<?php $nullvar = null; $nullstr = ''; $notnull = 'foo'; $unset = 'something'; unset($unset); function quiet_dump($v) { ob_start(); var_dump($v); return ob_get_clean(); } $results = array( '==Results==' , '$nullvar = ' , quiet_dump(isset($nullvar), true) , '$nullstr = ' , quiet_dump(isset($nullstr), true) , '$notnull = ' , quiet_dump(isset($notnull), true) , '$unset = ' , quiet_dump(isset($unset), true) ); echo implode("\n",$results);
Output for git.master, git.master_jit, rfc.property-hooks
==Results== $nullvar = bool(false) $nullstr = bool(true) $notnull = bool(true) $unset = bool(false)

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:
56.6 ms | 401 KiB | 8 Q