3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tests = [ [], // expect null [true, true], // expect true [false, false], // expect false [true, false, true], // expect null [false, true, false], // expect null ]; foreach ($tests as $bools) { echo "\n"; var_export( (function($bools) { $hasTrue = null; foreach ($bools as $b) { $hasTrue |= $b; if ($hasTrue ^ $b) { return null; } } return $b ?? $hasTrue; })($bools) ); }
Output for git.master_jit, git.master
NULL true false NULL NULL

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:
67.41 ms | 405 KiB | 5 Q