Online PHP editor | rfc for aWmaC

@ 2017-04-17T09:22:37Z

<?php

$tree = [
    0 => [
        'name' => 'root',
        'data' => 0,
        'children' => [
            '1' => [
                'name' => 'Auto',
                'data' => 0,
                'children' => [
                    '2' => [
                        'name' => 'Tyres',
                        'data' => 0,
                        'children' => [],
                    ],
                    '3' => [
                        'name' => 'Audio',
                        'data' => 1,
                        'children' => [],
                    ],
                ],
            ],
            '4' => [
                'name' => 'Dishes',
                'data' => 0,
                'children' => [
                    '5' => [
                        'name' => 'Forks',
                        'data' => 0,
                        'children' => [],
                    ],
                    '6' => [
                        'name' => 'Knives',
                        'data' => 0,
                        'children' => [
                            '7' => [
                                'name' => 'Stainless steel',
                                'data' => 0,
                                'children' => [],
                            ],
                            '8' => [
                                'name' => 'Silver',
                                'data' => 0,
                                'children' => [],
                            ],
                        ],
                    ],
                ],
            ],
        ]
    ]
];
#var_dump($tree);

function reduceTree($tree)
{
    foreach ($tree['children'] as $key => $value) {
        if ($value['children']) {
            $tree['children'][$key] = reduceTree($value);
        }

        if (!$tree['data']) {
            unset($tree['children'][$key]);
        }
    }
    return $tree;
}

$new = reduceTree($tree[0]);
var_dump($new);

Output for git.master, git.master_jit, rfc.property-hooks: array(3) { ["name"]=> string(4) "root" ["data"]=> int(0) ["children"]=> array(0) { } }

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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

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