How to pass variable from controller to model in Laravel

• Pass parameter values from controller to admin model in laravel

  //app\Http\Controllers\AdminController.php
  
  <?php
  
  namespace App\Http\Controllers;
  
  use Illuminate\Http\Request;
  use App\Models\Admin;
  
  class AdminController extends Controller
  {
      /**
       * Handle an authentication attempt for admin.
       *
       * @return Response
       */
      public function userAuthentication(Request $request)
      {
          $admin = new Admin();
          $admin->checkUserAuthentication($request);
      }
  }
  
  //app\Models\Admin.php
  <?php
  namespace App;
  use Illuminate\Database\Eloquent\Model;
  class Admin extends Model
  {
  
      public function checkUserAuthentication($request)
      {
          // Do something with $request
          $request->input('username');
      }
  
  }
  

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