3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types = 1); /** * @return string[] */ function helper(): array { return []; } $typed_string = helper(); $typed_string = mb_strtolower(array_pop($typed_string)); var_export($typed_string);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: mb_strtolower(): Argument #1 ($string) must be of type string, null given in /in/nEK5c:11 Stack trace: #0 /in/nEK5c(11): mb_strtolower(NULL) #1 {main} thrown in /in/nEK5c on line 11
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:
132.35 ms | 405 KiB | 5 Q