Question

我正在为我的电子商务网站创建购物车，但是我的更新查询程序无效。如果我的购物车中有多个产品，那么它不会更新价格和价格。产品数量。如果有一种产品，那么它工作正常。我是php新手。我还附上了购物车的截图。

// cart.php

<?php include_once("header.php");?>
<div id="products_box">
 <form action="" method="post" enctype="multipart/form-data">

 <table align="center" width="700" bgcolor="#CCFFCC">
 <br>
 <tr align="center">
  <td style="font-family:'Adobe Garamond Pro', 'Times New Roman'; font-size:20px" colspan="4"><h2> Your Book(s) Details </h2></td>
 </tr>

 <tr align="center" style="font-size:20px; font-family:'Adobe Garamond Pro', 'Times New Roman'">
 <th>Remove</th>
 <th>Book(s)</th>
 <th>Quantity</th>
 <th>Total Price</th>
 </tr>

 <?php
 $total=0;
 global $con;
 $ip = getIp();
 $sel_price = "select * from cart where ip_add='$ip'";
 $run_price = mysqli_query($con, $sel_price) or die(mysqli_error($con));

  while($p_price = mysqli_fetch_array($run_price))
 {
  $b_id = $p_price['cb_id'];
  $b_price = "select * from books where b_id='$b_id'";
  $run_book_price = mysqli_query($con, $b_price) or die(mysqli_error($con));

  while($pp_price = mysqli_fetch_array($run_book_price))
  {
   $b_price = array($pp_price['b_price']);
   $b_title = $pp_price['b_title'];
   $b_image = $pp_price['b_image'];
   $single_price = $pp_price['b_price'];

   $values = array_sum($b_price);
   $total += $values;

 ?>

 <tr align="center"> 
 <td><input type="checkbox" name="remove[]"  value="<?php echo $b_id; ?>"/> </td>
 <td><h3><a href='details.php?b_id=$b_id' style='text-decoration:none; color: #005680;'><?php echo $b_title; ?></a></h3>
 <img src="admin_area/books_images/<?php echo $b_image; ?>" width="100" height="100" />
 </td>
 <td><input type="text" name="qty"  size="8" value=""/></td>
 <?php
  if(isset($_POST['update_qty']))
 { 

   $qty = $_POST['qty'];
   $update_qty = "update cart set qty='$qty'";
   $run_qty = mysqli_query($con, $update_qty) or die(mysqli_error($con));
   $total = $total*$qty;

 }

 ?>
 <td> <?php echo "Rs.\n". $single_price; ?></td>
 </tr>

 <?php  } }?>

 <tr align="right">
   <td colspan="4"><b> Sub Total: </b></td>
   <td colspan="4"><?php echo "Rs.\n". $total; ?></td>
  </tr>


  <tr>
  <td align="left" style="padding-left:12px"><input type="submit" name="remove_pro" value="Remove" style="background: #000000; font-family:'Adobe Garamond Pro Bold', 'Adobe Garamond Pro', 'Adobe Caslon Pro'; font-size:18px; color:#FFFFFF"/></td>


  <td align="center" style="padding-right:20px"><input type="submit" name="continue" value="Continue Shopping" style="background: #000000; font-family:'Adobe Garamond Pro Bold', 'Adobe Garamond Pro', 'Adobe Caslon Pro'; font-size:18px; color:#FFFFFF" /></td>


   <td align="center" style="padding-left:12px"><input type="submit" name="update_qty" value="Update Quantity" style="background: #000000; font-family:'Adobe Garamond Pro Bold', 'Adobe Garamond Pro', 'Adobe Caslon Pro'; font-size:18px; color:#FFFFFF"/></td>


  <td align="right" colspan="4"><input type="submit" name="checkout" value="Checkout" style="background: #000000; font-family:'Adobe Garamond Pro Bold', 'Adobe Garamond Pro', 'Adobe Caslon Pro'; font-size:18px; color:#FFFFFF; margin-right:10px"/></td>
  </tr>

 </table>

 </form>


 <?php

  global $con;
  $ip = getIp();

  if(isset($_POST['remove_pro']))
 {
  foreach($_POST['remove'] as $remove_id)
 {
  $delete_pro = "delete from cart where cb_id='$remove_id' AND ip_add='$ip'";
  $run_query = mysqli_query($con, $delete_pro) or die(mysqli_error($con));
  if($run_query)
  {
   echo "<script>window.open('cart.php','_self')</script>";
  }
 }
}

 if(isset($_POST['continue']))
{
 echo "<script>window.open('index.php','_self')</script>";
}

 if(isset($_POST['checkout']))
{
 echo "<script>window.open('checkout.php','_self')</script>";
}


 ?>

</div>


</div>



</div>
<!--Content Wrapper Ends--->


<?php include_once("footer.php");?>
<!--Main Wrapper Ends-->


</body>

</html>

PHP更新购物车查询并不令人担忧

0 个答案: