title: Reuse laravel validation rules from another controller
body: <p><strong>Q:</strong> How can i reuse Auth's <em>ResigsterController</em> validation rules from another controller without having to grab the whole <em>RegisterController</em> class?<br>
  Here are the rules:</p>
  
  <pre><code>...
  
  protected function validator(array $data)
  {
      return Validator::make($data, [
          'fname' =&gt; 'required|string|max:255',
          'lname' =&gt; 'required|string|max:255',
          'email' =&gt; 'required|string|email|max:255|unique:users',
          'password' =&gt; 'required|string|min:6|confirmed',
          'tos' =&gt; 'boolean|accepted',
      ]);
  }
  ...
  </code></pre>
  
  <p>The other controller in:<br>
  app\Http\Controllers\UserController.php<br></p>
  
  <pre><code>public function update(Request $request, User $user)
  {
      //I need to validate $request with the rules from
      //ControllersAuth\RegisterController.php
  }
  </code></pre>