3v4l.org

run code in 500+ PHP versions simultaneously

@ 2021-04-01T17:33:52Z

<?php

$menu = [
    'root' => [
        'items' => [
            'A' => [
                'p' => [1, 2, 9],
            ],
            'B' => [
                'p' => [1, 2, 3, 9],
            ],
            'C' => [
                'p' => [1, 2, 4, 9],
            ],
            'D' => [
                'items' => [
                    'D1' => [
                        'p' => [1, 2, 3, 4, 9],
                    ],
                    'D2' => [
                        'p' => [1, 2, 3, 4],
                    ],
                ],
            ],
            'E' => [
                'items' => [
                    'E1' => [
                        'p' => [1, 2, 10],
                    ],
                ],
            ],
            'F' => [
                'items' => [
                    'F1' => [
                        'p' => [5, 6],
                    ],
                    'F2' => [
                        'p' => [7, 8],
                    ],
                ],
            ],
        ],
    ],
];
    
    function recursive_ps($elem) {
        $output = [];
        if (isset($elem['items'])) {
            foreach($elem['items'] as $key => $value) {
                if (isset($value['p'])) {
                    $output = array_merge($output, $value['p']);
                }
                if (isset($value['items'])) {
                    // merge the return value of function
                    $output = array_merge($output, recursive_ps($value));
                }
            }
        }
        return $output;
    }
    $output = array_values(array_unique(recursive_ps($menu['root'])));
    print_r($output);

Output for rfc.property-hooks, git.master, git.master_jit: Array ( [0] => 1 [1] => 2 [2] => 9 [3] => 3 [4] => 4 [5] => 10 [6] => 5 [7] => 6 [8] => 7 [9] => 8 )

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

2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn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

40.5 ms | 1442 KiB | 4 Q