Online PHP editor | rfc for 8hvY9

@ 2021-10-03T19:07:31Z

<?php

$arr = ["categories" => [
    [
        'id' => 368,
        'name' => 'Aksesuar',
        'parentId' => NULL,
        'subCategories' => [
            [
                'id' => 387,
                'name' => 'Saat',
                'parentId' => 368,
                'subCategories' => []
            ], [
                'id' => 394,
                'name' => 'Şapka',
                'parentId' => 368,
                'subCategories' => []
            ], [
                'id' => 396,
                'name' => 'Takı & Mücevher',
                'parentId' => 368,
                'subCategories' => [
                    [
                        'id' => 397,
                        'name' => 'Bileklik',
                        'parentId' => 396,
                        'subCategories' => [
                            [
                                'id' => 1238,
                                'name' => 'Altın Bileklik',
                                'parentId' => 397,
                                'subCategories' => []
                            ]
                        ]
                    ]
                ]
            ], 
        ]
    ]
]];

function recursive(string $needle, array $categories, $id): ?array
{
    foreach ($categories as $cat) {
        if (array_key_exists($needle, $cat) && $cat[$needle] === $id) {
            // make sure that if correct category is found,
            // no subcategories will be included
            unset($cat['subCategories']);
            return $cat;
        } else {
            $subCat = recursive($needle, $cat['subCategories'], $id);
            // if the $subCat is not null, it indicates the category 
            // with the correct id, or one of it's parent has been found
            if ($subCat !== null) {
                $cat['subCategories'] = $subCat;
                return $cat;
            }
        }
    }
    return null;
}

var_dump(recursive('id', $arr['categories'], 397));

Output for git.master, git.master_jit, rfc.property-hooks: array(4) { ["id"]=> int(368) ["name"]=> string(8) "Aksesuar" ["parentId"]=> NULL ["subCategories"]=> array(4) { ["id"]=> int(396) ["name"]=> string(17) "Takı & Mücevher" ["parentId"]=> int(368) ["subCategories"]=> array(3) { ["id"]=> int(397) ["name"]=> string(8) "Bileklik" ["parentId"]=> int(396) } } }

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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

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