3v4l.org

run code in 300+ PHP versions simultaneously
<?php function o($f, $g) { return function (...$x) { return $f(...$g(...$x)); }; } $f = function ($a, $b) { return [$a + $b, $a * $b]; }; $g = function (...$n) { return array_map(function ($n) { return n ** 2; }, $n); }; $h = o($f, $g); var_dump($h(2, 3));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $f in /in/JgJOv on line 6 Fatal error: Uncaught Error: Value of type null is not callable in /in/JgJOv:6 Stack trace: #0 /in/JgJOv(22): {closure}(2, 3) #1 {main} thrown in /in/JgJOv on line 6
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:
38.85 ms | 401 KiB | 8 Q