3v4l.org

run code in 300+ PHP versions simultaneously

@ 2015-04-07T08:57:40Z

<?php

$in = 8;
$count = 0;

function trace($x, $y, $z, $steps) {
        global $count;
        if ($steps == 0) {
                if ($x == 0 && $y == 0 && $z == 0) {
                        $count++;
                }
                return;
        }
        for($i = $x-1; $i <= $x+1; $i++) {
                for($j = $y-1; $j <= $y+1; $j++) {
                        for($k = $z-1; $k <= $z+1; $k++) {
                                if (
                                        array_sum(array($i, $j, $k)) !== 0
                                        || ($i == $x && $j == $y && $k == $z)
                                ) {
                                        continue;
                                }
                                trace($i, $j, $k, $steps-1);
                        }
                }
        }
}

trace(0, 0, 0, $in);
echo $count;

Abusive script

This script was stopped while abusing our resources

Output for git.master, git.master_jit, rfc.property-hooks: 54810

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

2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

preferences:dark modelive previewkey bindings

118.03 ms | 405 KiB | 5 Q