使用未知数量的嵌套动态更新php数组

function updateArrayValue(&$array, $keyValuePairs) {
    foreach ($keyValuePairs as $key => $value) {
        if (is_array($value)) {
            if (!isset($array[$key])) {
                $array[$key] = [];
            }
            updateArrayValue($array[$key], $value);
        } else {
            $array[$key] = $value;
        }
    }
}

$array = [
    'a' => [
        'b' => [
            'c' => 'old value'
        ]
    ]
];

$keyValuePairs = [
    'a' => [
        'b' => [
            'c' => 'new value'
        ]
    ]
];

updateArrayValue($array, $keyValuePairs);

print_r($array);

Array
(
    [a] => Array
        (
            [b] => Array
                (
                    [c] => new value
                )
        )
)