// if(isset($_SESSION['loggedin']) && !empty($_SESSION['loggedin'])){

// $uid = $_SESSION['customerid'];

// echo $sql ="INSERT INTO compare_items (pid, uid) VALUES ($id,$uid)";

// $res = mysqli_query($conn, $sql);
// header('location: laptop.php');

// }else{
//	$_SESSION['compare'][$id] = array("quantity" => $quant);
//	header('location: index');
//}