好吧所以我知道如何使用PayPal的IPN系统进行立即购买和基本付款，虽然我现在已经创建了一个基本的商店，其中包含大约12种不同的商品，可以使用购物车系统多次订购而且它有点复杂
我的问题是，在这类代码中选择POST的项目是：
mc_gross=0.02
item_number1=0003
item_number2=0012
payment_date=06:07:02 Feb 23, 2015 PST
payment_status=Completed
first_name=Name
business=email@hotmail.co.uk
payer_email=email@hotmail.co.uk
last_name=lastname
receiver_email=email@hotmail.co.uk
custom=
num_cart_items=2
item_name1=Professional Website Design
item_name2=Additional Website Page
quantity1=1
quantity2=1
txn_type=cart
mc_currency=GBP
mc_gross_1=0.01
mc_gross_2=0.01
我如何能够进行MySQL更新以添加每个不同的项目，或多个项目＆amp;他们的价格？
例如，这是我发布到我的数据库的单个项目的内容......
// assign posted variables to local variables
$item_name = $_POST['item_name'];
$item_number = $_POST['item_number'];
$payment_status = $_POST['payment_status'];
if ($_POST['mc_gross'] != NULL)
$payment_amount = $_POST['mc_gross'];
else
$payment_amount = $_POST['mc_gross1'];
$payment_currency = $_POST['mc_currency'];
$txn_id = $_POST['txn_id'];
$receiver_email = $_POST['receiver_email'];
$payer_email = $_POST['payer_email'];
$custom = $_POST['custom'];
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
if($payment_status == 'Completed'){
$txn_id_check = mysql_query("SELECT `txn_id` FROM `payment_logs` WHERE `txn_id`='".$txn_id."'");
if(mysql_num_rows($txn_id_check)!= 1){
if($receiver_email == 'email@hotmail.co.uk'){
if($item_name == 'Personal Website Design'){
// Add TXN ID to LOG
mysql_query("INSERT INTO `payment_logs` VALUES ('','".$first_name."','".$last_name."','".$payer_email."','".$txn_id."','".$item_name."','£".$payment_amount."',NOW(),'0','','£0.00')");
如果用户选择了多个项目，我将如何更改代码＆amp;我的数据库包含买家可以使用的各种不同选择？
答案 0 :(得分：0)
以下是我用来解析IPN购物车商品的代码段。
$i = 1;
$cart_items = array();
while(isset($_POST['item_number' . $i]))
{
$item_number = isset($_POST['item_number' . $i]) ? $_POST['item_number' . $i] : '';
$item_name = isset($_POST['item_name' . $i]) ? $_POST['item_name' . $i] : '';
$quantity = isset($_POST['quantity' . $i]) ? $_POST['quantity' . $i] : '';
$mc_gross = isset($_POST['mc_gross_' . $i]) ? $_POST['mc_gross_' . $i] : 0;
$mc_handling = isset($_POST['mc_handling' . $i]) ? $_POST['mc_handling' . $i] : 0;
$mc_shipping = isset($_POST['mc_shipping' . $i]) ? $_POST['mc_shipping' . $i] : 0;
$custom = isset($_POST['custom' . $i]) ? $_POST['custom' . $i] : '';
$option_name1 = isset($_POST['option_name1_' . $i]) ? $_POST['option_name1_' . $i] : '';
$option_selection1 = isset($_POST['option_selection1_' . $i]) ? $_POST['option_selection1_' . $i] : '';
$option_name2 = isset($_POST['option_name2_' . $i]) ? $_POST['option_name2_' . $i] : '';
$option_selection2 = isset($_POST['option_selection2_' . $i]) ? $_POST['option_selection2_' . $i] : '';
$option_name3 = isset($_POST['option_name3_' . $i]) ? $_POST['option_name3_' . $i] : '';
$option_selection3 = isset($_POST['option_selection3_' . $i]) ? $_POST['option_selection3_' . $i] : '';
$option_name4 = isset($_POST['option_name4_' . $i]) ? $_POST['option_name4_' . $i] : '';
$option_selection4 = isset($_POST['option_selection4_' . $i]) ? $_POST['option_selection4_' . $i] : '';
$option_name5 = isset($_POST['option_name5_' . $i]) ? $_POST['option_name5_' . $i] : '';
$option_selection5 = isset($_POST['option_selection5_' . $i]) ? $_POST['option_selection5_' . $i] : '';
$option_name6 = isset($_POST['option_name6_' . $i]) ? $_POST['option_name6_' . $i] : '';
$option_selection6 = isset($_POST['option_selection6_' . $i]) ? $_POST['option_selection6_' . $i] : '';
$option_name7 = isset($_POST['option_name7_' . $i]) ? $_POST['option_name7_' . $i] : '';
$option_selection7 = isset($_POST['option_selection7_' . $i]) ? $_POST['option_selection7_' . $i] : '';
$option_name8 = isset($_POST['option_name8_' . $i]) ? $_POST['option_name8_' . $i] : '';
$option_selection8 = isset($_POST['option_selection8_' . $i]) ? $_POST['option_selection8_' . $i] : '';
$option_name9 = isset($_POST['option_name9_' . $i]) ? $_POST['option_name9_' . $i] : '';
$option_selection9 = isset($_POST['option_selection9_' . $i]) ? $_POST['option_selection9_' . $i] : '';
$btn_id = isset($_POST['btn_id' . $i]) ? $_POST['btn_id' . $i] : '';
$current_item = array(
'item_number' => $item_number,
'item_name' => $item_name,
'quantity' => $quantity,
'mc_gross' => $mc_gross,
'mc_handling' => $mc_handling,
'mc_shipping' => $mc_shipping,
'custom' => $custom,
'option_name1' => $option_name1,
'option_selection1' => $option_selection1,
'option_name2' => $option_name2,
'option_selection2' => $option_selection2,
'option_name3' => $option_name3,
'option_selection3' => $option_selection3,
'option_name4' => $option_name4,
'option_selection4' => $option_selection4,
'option_name5' => $option_name5,
'option_selection5' => $option_selection5,
'option_name6' => $option_name6,
'option_selection6' => $option_selection6,
'option_name7' => $option_name7,
'option_selection7' => $option_selection7,
'option_name8' => $option_name8,
'option_selection8' => $option_selection8,
'option_name9' => $option_name9,
'option_selection9' => $option_selection9,
'btn_id' => $btn_id
);
array_push($cart_items, $current_item);
$i++;
}
然后，您可以为数据库更新添加循环...
foreach($cart_items as $cart_item)
{
/**
* Update database with values like...
* $cart_item['item_name']
* $cart_item['item_number']
* $cart_item['quantity']
* $cart_item['mc_gross']
*/
}