title: wrong email / password message laravel 5
body: <p>I use following code in my request(Laravel request validation) file</p>
  
  <pre><code> public function rules()
  {
      return [
          'email'=&gt;'required|email',
          'password'=&gt;'required'
      ];
  }
  
  public function messages()
  {
      return [
          'email.required' =&gt; 'Please enter email ',
          'email.email' =&gt; 'Please enter valid email ',
          'password.required' =&gt; 'Enter your password.',
      ];
  }
  </code></pre>
  
  <p>I want to display validation errors if login credentials does not match with users table "wrong email/id or password", is it possible to write code for this here, or How should I write code in my controller for this.</p>
  
  <p>Thanks in Advance.</p>