$year = trim($_POST['year']);
         $price = trim($_POST['price']);
         $ram = trim($_POST['ram']);
         $processor = trim($_POST['processor']);
         $videocard = trim($_POST['videocard']);
         $addProduct->addComp($products, $make, $model, $year, $price, $ram, $processor, $videocard);
         echo "<br/><br/>The computer is added. Thank you!";
         break;
     case 'printers':
         $make = trim($_POST['make']);
         $model = trim($_POST['model']);
         $year = trim($_POST['year']);
         $price = trim($_POST['price']);
         $type = trim($_POST['type']);
         $numOfPages = trim($_POST['numOfPages']);
         $addProduct->addPrinter($products, $make, $model, $year, $price, $type, $numOfPages);
         echo "<br/><br/>The printer is added. Thank you!";
         break;
     case 'routers':
         $make = trim($_POST['make']);
         $model = trim($_POST['model']);
         $year = trim($_POST['year']);
         $price = trim($_POST['price']);
         $frequency = trim($_POST['frequency']);
         $addProduct->addRouter($products, $make, $model, $year, $price, $frequency);
         echo "<br/><br/>The router is added. Thank you!";
         break;
     default:
         'Error';
 }
 ?>