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@ 2021-02-02T16:49:47Z

<?php

$a = array(
    'root_trrreeee1' => array(
        'path1' => array(
            'description' => 'etc',
            'child_of_path_1' => array(
                array('name' => '1'),
                array('name' => '1')
            )
        ),
        'path2' => array(
            'description' => 'etc',
            'child_of_path_2' => array(
                array('name' => '1'),
                array('name' => '2')
            )
        ),
    ),
    'name' => '1',
    1 => array('name' => '1'),
    'another_leaf' => '1'
);

function array_value_path(array $array, $needle, &$path)
{
    foreach($array as $key => $value) {
        if ($value == $needle || is_array($value) && array_value_path($value, $needle, $path)) {
            array_unshift($path, $key);
            return true;
        }
    }
    return false;
}


$path = [];

array_value_path($a, ['name' => 1], $path);

print_r($path);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => root_trrreeee1 [1] => path1 [2] => child_of_path_1 [3] => 0 )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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