显示购物车会话项

Question

我已成功展示购物车并将其添加到购物车中。 但我想在付款页面上显示购物车项目列表以便让用户 确认他们的商品数量和价格。如何在中显示这些数据 会话。这是我的编码方式。下面的代码是cart.php 我想将项目显示到payment.php

switch($action)
{	 
	case "add":
	
			if (isset($_SESSION['cart'][$proid]))
			$_SESSION['cart'][$proid]++;
		else
			$_SESSION['cart'][$proid]=1;
	
	break;
	case "remove":
	
		if (isset($_SESSION['cart'][$proid]))
		{
			$_SESSION['cart'][$proid]--;
			if ($_SESSION['cart'][$proid]==0)
				unset($_SESSION['cart'][$proid]);
		}
	
		else
			$_SESSION['cart'][$proid]=1;
	
	break;
	case "empty" :
	unset($_SESSION['cart']);
	break;	
} 
					
				if (isset($_SESSION['cart']))
				{
					$total = 0;
					foreach($_SESSION['cart'] as $proid =>$x)
					{
						$results = mysqli_query($con,"Select * from product where Product_ID = $proid");
						$myrow = mysqli_fetch_array($results);
						$productname = $myrow['Product_Name'];
						$productprice= $myrow['Product_Price'];
						$line_cost = $productprice * $x;
						$total=$total+$line_cost;
						?>
							<li class = "cartlist">
							<?php echo  '<img src="data:image/jpeg;base64,' . base64_encode($myrow['Product_Pic']) . '" width="196" height="120">';?>
							<p><span style = "font-weight: bold; font-size: 1.2em;">
							<?php echo $productname ?>
							</span></br />RM <?php echo $productprice;?>
							</br />Quantity : <?php echo $x ?></br><a href='cart.php?proid=<?php echo $proid;?>&action=add'>Add </a>&ensp;<a href ='cart.php?proid=<?php echo $proid;?>&action=remove'> Reduce </a></br>RM<?php echo $line_cost; ?> <br/> 
							</p> </li>
						<?php
					}
				
				?>