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@ 2023-01-29T07:56:38Z

<?php

$array = [
    'first_level' => [
        'dir_3' => [
            'subdir_1' => [
                'file_2.mp4' => (object) [
                    'name' => 'file_2.mp4'
                ],
                'file_1.mp4' => (object) [
                    'name' => 'file_1.mp4'
                ]
            ]
        ],
        'dir_1' => [
            'subdir_2' => [
                'file_6.mp4' => (object) [
                    'name' => 'file_6.mp4'
                ],
                'file_9.mp4' => (object) [
                    'name' => 'file_9.mp4'
                ],
                'file_7.mp4' => (object) [
                    'name' => 'file_7.mp4'
                ],
                'file_17.mp4' => (object) [
                    'name' => 'file_17.mp4'
                ],
            ],
            'subdir_1' => [
                'file_8.mp4' => (object) [
                    'name' => 'file_8.mp4'
                ],
            ]
        ]
    ],
    'fake_level' => [
        'dir_7' => [
            'subdir_1' => [
                'file_5.mp4' => (object) [
                    'name' => 'file_5.mp4',
                    'size' => 56,
                    'active' => true,
                ],
                'file_19.mp4' => (object) [
                    'name' => 'file_19.mp4',
                    'size' => 77,
                    'active' => false,
                ],
                'file_33.mp4' => (object) [
                    'name' => 'file_33.mp4',
                    'size' => 81,
                    'active' => true,
                ],
            ]
        ],
        'dir_13' => [],
        'dir_101' => [],
        'dir_66' => [],
    ]
];

function nat_ksort_r(array &$data): void
{
    if (is_array($data)) {
        ksort($data, SORT_NATURAL);
        array_walk($data, __METHOD__);
    }
}

nat_ksort_r($array);
var_export($array);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught TypeError: nat_ksort_r(): Argument #1 ($data) must be of type array, stdClass given in /in/sWY4u:63 Stack trace: #0 [internal function]: nat_ksort_r(Object(stdClass), 'file_5.mp4') #1 /in/sWY4u(67): array_walk(Array, 'nat_ksort_r') #2 [internal function]: nat_ksort_r(Array, 'subdir_1') #3 /in/sWY4u(67): array_walk(Array, 'nat_ksort_r') #4 [internal function]: nat_ksort_r(Array, 'dir_7') #5 /in/sWY4u(67): array_walk(Array, 'nat_ksort_r') #6 [internal function]: nat_ksort_r(Array, 'fake_level') #7 /in/sWY4u(67): array_walk(Array, 'nat_ksort_r') #8 /in/sWY4u(71): nat_ksort_r(Array) #9 {main} thrown in /in/sWY4u on line 63
Process exited with code 255.

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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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