试试这样……

来源链接

if (Auth::attempt(['email' => $email, 'password' => $password], $remember)) {
        // The user is being remembered...
    }

在LoginController中添加以下行：

/**
     * Get the login username to be used by the controller.
     *
     * @return string
     */
    public function username()
    {
        return 'mobile';
    }

public function __construct()
    {
        $this->middleware('guest')->except('logout');
        $this->mobile = $this->findMobile();
    }
    public function findMobile()
    {
        $login = request()->login;
        $fieldType = filter_var($login, FILTER_VALIDATE_EMAIL) ? 'email' : 'mobile';
        request()->merge([$fieldType => $login]);
        return $fieldType;
    }
    public function mobile()
    {
        return $this->mobile;
    }
    public function logout(Request $request) {
        Auth::logout();
        return redirect('/login');
    }

尝试使用此代码，您可以使用电子邮件或移动的登录

您可以使用自定义登录

$user = User::where('mobile', $request->email)->first();

if (Hash::check($request->password,$user->password)) {
    auth()->login($user, (bool) $request->get('remember_me', false));  // it will login that user 
}

参考链接https://laravel.com/docs/8.x/authentication#other-authentication-methods

注意：这样你就有更多的控制权

$customerInfo = array（“email”=〉$email，“password”=〉$password）;

// $credentials = $request->only('email', 'password');
    if (Auth::attempt($customerInfo)) {
        return redirect()->intended('home')
                    ->withSuccess('You have Successfully loggedin');
    }