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@ 2022-01-06T15:21:19Z

<?php

function appendToValues(&$array, $value)
{
    foreach ($array as &$item) {
        if ($item['attribute_code'] === 'harddisk') {
            $item['attribute_value'][] = $value;
        } elseif(is_array($item['attribute_value'])) {
            appendToValues($item['attribute_value'], $value);
        }
    }
}

$array = [
  3 => [
    'attribute_code' => 'category',
    'attribute_value' => [
      4 => [
        'attribute_code' => 'hardware',
        'attribute_value' => [
          5 => [
            'attribute_code' => 'harddisk',
            'attribute_value' => [
              6 => [
                'attribute_code' => 'small',
                'attribute_value' => '132gb',
              ],
            ],
          ],
        ],
      ],
    ],
  ],
];

var_dump($array);

appendToValues($array, ['attribute_code' => 'medium', 'attribute_value' => '256gb']);

var_dump($array);

Output for git.master, git.master_jit, rfc.property-hooks: array(1) { [3]=> array(2) { ["attribute_code"]=> string(8) "category" ["attribute_value"]=> array(1) { [4]=> array(2) { ["attribute_code"]=> string(8) "hardware" ["attribute_value"]=> array(1) { [5]=> array(2) { ["attribute_code"]=> string(8) "harddisk" ["attribute_value"]=> array(1) { [6]=> array(2) { ["attribute_code"]=> string(5) "small" ["attribute_value"]=> string(5) "132gb" } } } } } } } } array(1) { [3]=> array(2) { ["attribute_code"]=> string(8) "category" ["attribute_value"]=> array(1) { [4]=> array(2) { ["attribute_code"]=> string(8) "hardware" ["attribute_value"]=> array(1) { [5]=> array(2) { ["attribute_code"]=> string(8) "harddisk" ["attribute_value"]=> array(2) { [6]=> array(2) { ["attribute_code"]=> string(5) "small" ["attribute_value"]=> string(5) "132gb" } [7]=> array(2) { ["attribute_code"]=> string(6) "medium" ["attribute_value"]=> string(5) "256gb" } } } } } } } }

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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