PHP 如何在 PayPal 购物车中使用 IPN？

Question

好的，我知道如何使用 PayPal 的 IPN 系统进行“立即购买”和“基本”付款，尽管我现在已经创建了一个基本商店，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，而且它正在获得有点复杂。

我的问题是，虽然在此类代码中选择的项目 POST：

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

我如何才能进行 MySQL 更新以添加每个不同的项目或多个项目及其价格？

例如，这是我发布到我的数据库中的单个项目...

// 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，我将如何更改代码和我的数据库以合并买家可以使用的各种不同选择？

Answer 1

这是我一直用来解析 IPN 中的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++;   
}

然后你可以在你的数据库更新中添加一个循环...

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']
     */
}

PHP 如何在 PayPal 购物车中使用 IPN？

PHP How to use IPN with a PayPal shopping cart?

php

paypal

web

system

paypal-ipn