public static function getCart()
 {
     $item = 0;
     $price = 0;
     if (Session::has('addcart')) {
         $cart = Session::get('addcart');
         $item = 0;
         $price = 0;
         $mdPro = new Nproducts();
         foreach (Session::get('addcart') as $key => $val) {
             $data = $mdPro->find($key);
             $price_convert = SiteHelpers::getPricePromotion($data);
             $price_item = $price_convert * $val;
             $price += $price_item;
             $item += $val;
         }
     }
     return $item . " item(s) - " . number_format($price, 0, ',', '.') . 'VNĐ';
 }