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@ 2018-07-21T22:58:07Z

<?php
function transform(array $input): array
{
    $output = [];

    foreach($input as $k => $v)
    {
        if(is_array($v))
        {
            $output[$k] = transform($v);
        }
        else
        {
            $output[$k] = $v * 10;
        }
    }
    
    return $output;
}

$input = [
    'parent1' => [
        'subArray1' => [
            'value1' => '1',
            'value2' => '2'
            ],
        'value3' => '3',
        'subArray2' =>[ 
            'subSubArray2' => [
                'value1' => '1',
                'value4' => '4'
                ]
            ]
        ],
        'parent2' => [
        'subArray1' => [
            'value1' => '1',
            'value2' => '2'
            ],
        'value5' => '5',
        'subArray2' =>[ 
            'subSubArray2' => [
                'value1' => '1',
                'value4' => '4'
                ]
            ]
        ]
    ]; 


var_dump(transform($input));

Output for git.master_jit, git.master, rfc.property-hooks: array(2) { ["parent1"]=> array(3) { ["subArray1"]=> array(2) { ["value1"]=> int(10) ["value2"]=> int(20) } ["value3"]=> int(30) ["subArray2"]=> array(1) { ["subSubArray2"]=> array(2) { ["value1"]=> int(10) ["value4"]=> int(40) } } } ["parent2"]=> array(3) { ["subArray1"]=> array(2) { ["value1"]=> int(10) ["value2"]=> int(20) } ["value5"]=> int(50) ["subArray2"]=> array(1) { ["subSubArray2"]=> array(2) { ["value1"]=> int(10) ["value4"]=> int(40) } } } }

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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