如何在PHP中从多维关联数组中删除项

$array = [
    'a' => [
        'b' => [
            'c' => 1,
            'd' => 2
        ],
        'e' => 3
    ],
    'f' => [
        'g' => 4,
        'h' => 5
    ]
];

function removeItemFromArray(&$array, $keyToRemove) {
    foreach ($array as $key => &$value) {
        if (is_array($value)) {
            removeItemFromArray($value, $keyToRemove);
        } else {
            if ($key === $keyToRemove) {
                unset($array[$key]);
            }
        }
    }
}

// 使用示例
removeItemFromArray($array, 'd');
print_r($array);