$.ajax({
        type : "get",dataType : 'jsonp',url: url,jsonpCallback: "callback",data: {
            catid: n_catid,id: '28,38'
        },success: function(data) {
            if ( data.status) {
                                                                  
                    }
                          
                });

public function actionGet() {
          
       $json = $model->getListDataById($id,$catid); 
          
       die('callback'.'('.json_encode($json).')');
    }