如何使用键值在多维数组中移动数组？

// 多维数组
$multiArray = array(
    'key1' => array(
        'subkey1' => array(
            'subsubkey1' => 'value1',
            'subsubkey2' => 'value2'
        ),
        'subkey2' => array(
            'subsubkey3' => 'value3',
            'subsubkey4' => 'value4'
        )
    ),
    'key2' => array(
        'subkey3' => array(
            'subsubkey5' => 'value5',
            'subsubkey6' => 'value6'
        ),
        'subkey4' => array(
            'subsubkey7' => 'value7',
            'subsubkey8' => 'value8'
        )
    )
);

// 确定要移动的数组的位置
$sourceKey = 'key1';
$sourceSubKey = 'subkey1';
$sourceSubSubKey = 'subsubkey1';

// 使用键值获取目标数组
$sourceArray = $multiArray[$sourceKey][$sourceSubKey];

// 移动数组
unset($multiArray[$sourceKey][$sourceSubKey][$sourceSubSubKey]);
$targetKey = 'key2';
$targetSubKey = 'subkey4';
$multiArray[$targetKey][$targetSubKey][$sourceSubSubKey] = $sourceArray;

// 打印移动后的多维数组
print_r($multiArray);