将数组传递给eloquent对象时抛出错误

Question

使用Eloquent在One to Many关系中插入数据时遇到了一些麻烦。当我将数组传递给对象时，文档声明会抛出错误，当我回显$ex->getMessage()时，只会打印我想要传递的数组的索引（“数字”）。有没有人知道为什么会这样？

public static function insert(Request $request, Response $response) {
        try {
            $data = $request->getParsedBody();

            $user = new \User;
            $user->name = $data['name'];
            $user->flag = $data['flag'];
            $user->login = $data['login'];
            $user->password = md5(SALT . $data['password']);
            //$user->save();

            foreach ($data['phoneNumbers'] as $key => $number) {
                $phonenumber[$key] = new \Phonenumber(array("number" => $number));
            }

            $user->phonenumbers()->saveMany($phonenumber);

            $meta = Helper::retornaMetaArray(Enum::SUCS_STS, Enum::CREATED, 201);

            return $response->withCustomJson(null, $meta);
        } catch (Exception $ex) {
            echo $ex->getMessage();
        }
    }

这是我在请求正文中发送的内容：

{
    "name": "Jon Snow",
    "login": "jon",
    "password": "ghost",
    "flag": "1",
    "phoneNumbers": ["(82) 99178-1066", "(82) 99303-9037"]
}