Php laracasts教程身份验证失败

我试着运行下面的代码，发现“用户密码的存储工作不正常”。我尝试删除数据库中的所有条目，但问题仍然存在。代码如下：

 $user = new User;
 $user->fname = 'joe';
 $user->lname = 'joe';
 $user->email = 'joe@gmail.com';
 $user->password = Hash::make('123456');
 if ( ! ($user->save()))
 {
     dd('user is not being saved to database properly - this is the problem');          
 }

 if ( ! (Hash::check('123456', Hash::make('123456'))))
 {
     dd('hashing of password is not working correctly - this is the problem');          
 }

 if ( ! (Auth::attempt(array('email' => 'joe@gmail.com', 'password' => '123456'))))
 {
     dd('storage of user password is not working correctly - this is the problem');          
 }

 else
 {
     dd('everything is working when the correct data is supplied - so the problem is related to your forms and the data being passed to the function');
 }

---

这个问题的原因可能是什么？我正在尝试对登录进行身份验证。

哦，这只是一个愚蠢的错误，我确实尝试将数据库中密码和用户名字段的长度/值从50更改为255。然后删除数据库的所有记录。完成此操作后，我的登录身份验证现在开始工作