如何在PHP中重新标识多维数组？

function reindexArray($array) {
    $result = array();
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            $result[$key] = reindexArray($value);
        } else {
            $result[] = $value;
        }
    }
    return $result;
}

// 示例用法
$originalArray = array(
    'a' => array('b' => 'value1', 'c' => 'value2'),
    'd' => 'value3',
    'e' => array('f' => 'value4')
);

$reindexedArray = reindexArray($originalArray);

print_r($reindexedArray);

Array
(
    [0] => Array
        (
            [0] => value1
            [1] => value2
        )

    [1] => value3
    [2] => Array
        (
            [0] => value4
        )

)