3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function foo(bool $x): string { if ($x) echo 'yes'; echo 'no'; } foo(true); // TypeError
Output for git.master, git.master_jit, rfc.property-hooks
yesno Fatal error: Uncaught TypeError: foo(): Return value must be of type string, none returned in /in/dh8ot:7 Stack trace: #0 /in/dh8ot(9): foo(true) #1 {main} thrown in /in/dh8ot on line 7
Process exited with code 255.

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:
76.97 ms | 402 KiB | 8 Q