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@ 2022-02-26T14:16:24Z

<?php

$arr = [
    'id'          => 5,
    'name'        => 'Item 5',
    'all_parents' => [
        'id'          => 4,
        'name'        => 'Item 4',
        'all_parents' => [
            'id'          => 3,
            'name'        => 'Item 3',
            'all_parents' => [
                'id'          => 2,
                'name'        => 'Item 2',
                'all_parents' => [
                    'id'          => 1,
                    'name'        => 'Item 1',
                    'all_parents' => null
                ]
            ]
        ]
    ]
];

class Recursing
{
    public function generateBreadcrumb($structure): array
    {
        return array_merge(
            empty($structure['all_parents']) ? [] : $this->generateBreadcrumb($structure['all_parents']),
            [['id' => $structure['id'], 'name' => $structure['name']]]
        );
    }
}

$test = new Recursing;
var_export($test->generateBreadcrumb($arr));

Output for rfc.property-hooks, git.master, git.master_jit: array ( 0 => array ( 'id' => 1, 'name' => 'Item 1', ), 1 => array ( 'id' => 2, 'name' => 'Item 2', ), 2 => array ( 'id' => 3, 'name' => 'Item 3', ), 3 => array ( 'id' => 4, 'name' => 'Item 4', ), 4 => array ( 'id' => 5, 'name' => 'Item 5', ), )

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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