3v4l.org

run code in 300+ PHP versions simultaneously
<?php function xs() { for ($i = 0; $i < 5; $i++) { yield $i; } } $a = xs(); foreach($a as &$b) { echo $b.','; echo next($a).','; echo $b."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Exception: You can only iterate a generator by-reference if it declared that it yields by-reference in /in/Vb7iZ:11 Stack trace: #0 {main} thrown in /in/Vb7iZ 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:
46.38 ms | 401 KiB | 8 Q