贝宝 IPN 订阅 (php)

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【中文标题】贝宝 IPN 订阅 (php)【英文标题】:Paypal IPN subscription (php) 【发布时间】:2013-03-06 05:54:15 【问题描述】:

我几天来一直在尝试使用 Paypal 及其 IPN 系统设置订阅。 大多数教程我都看不懂,最后找到了一个对我有意义的教程。

在 Sean 的帮助下,我稍微更改了代码,但仍然没有成功。

要创建订阅按钮,我使用以下代码:

<form action="https://sandbox.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_xclick-subscriptions">
<input type="hidden" name="business" value="info@mydomain.com">
<input type="hidden" name="lc" value="NL">
<input type="hidden" name="item_name" value="Mydomain.com Abonnement">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="no_shipping" value="2">
<input type="hidden" name="notify_url" value="http://www.mydomain.com/pp-ipn-handler.php">
<input type="hidden" name="return" value="http://www.mydomain.com/ppsuccess.php">
<input type="hidden" name="src" value="1">
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="bn" value="PP-SubscriptionsBF:btn_subscribeCC_LG.gif:NonHosted">
<input type="hidden" name="custom" value="'. $username .'">
<table>
<tr><td><input type="hidden" name="on0" value="Betaalperiode"><strong>Kies uw betaalperiode:</strong></td></tr><tr><td><select name="os0">
    <option value="Per maand">Per maand : &euro;25.00 EUR</option>
    <option value="Per jaar">Per jaar : &euro;240.00 EUR</option>
</select> </td></tr>
</table>
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="option_select0" value="Per maand">
<input type="hidden" name="option_amount0" value="25.00">
<input type="hidden" name="option_period0" value="M">
<input type="hidden" name="option_frequency0" value="1">
<input type="hidden" name="option_select1" value="Per jaar">
<input type="hidden" name="option_amount1" value="240.00">
<input type="hidden" name="option_period1" value="Y">
<input type="hidden" name="option_frequency1" value="1">
<input type="hidden" name="option_index" value="0">
<input type="image" src="https://www.paypalobjects.com/nl_NL/NL/i/btn/btn_subscribe_LG.gif" border="0" name="submit" >
</form>

为了处理 ipn 响应,我有一个名为 pp-ipn-handler.php 的文件,其中包含以下代码:

<?php
// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value) 
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";

// post back to PayPal system to validate
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
// assign posted variables to local variables
$payment_status = $_POST['payment_status'];
$payment_amount = $_POST['mc_gross'];
// $payment_currency = $_POST['mc_currency'];
$payment_currency = 'EUR';
$ppusername = $_POST['custom'];
$fp = fsockopen ('sandbox.paypal.com', 80, $errno, $errstr, 30);
if (!$fp)


else

fputs ($fp, $header . $req);
while (!feof($fp))

$res = fgets ($fp, 1024);
if (strcmp ($res, "VERIFIED") == 0)

// When a payment has gone trough
    //When payment is 25EUR make it a month validity
    if ($ppusername&&($payment_currency=='EUR')&&($payment_amount=='25'))
    
        $period = '+1 month';       
    
    //When payment is 240EUR make it a year validity
    else if ($ppusername&&($payment_currency=='EUR')&&($payment_amount=='25'))
    
        $period = '+1 year';        
    
    //There is incorrect information in this payment
    else
    

    


    //Lets first get the date in mysql format
    $date = date('m/d/Y h:i:s', time());
    $date = date('m/d/Y h:i:s', strtotime("$date -7 hours"));
    //Now lets update the subscription records
    require_once('core/dbconnect.php');
    $subscriptionrecordexists = mysql_query("SELECT * FROM subscriptions WHERE username='$ppusername'");
    if (mysql_num_rows($subscriptionrecordexists))
    
        //User has purchase before. Adjust his subscription record and ad an invoice.
        require_once('core/dbconnect.php');
        $subscriptionrecord = mysql_query("SELECT * FROM subscriptions WHERE username='$ppusername'");
        $row = mysql_fetch_array($subscriptionrecord);
        //Update subscription record
        $currentvalidity = $row['validity'];
        if ($currentvalidity >= $date)
        
            //Add period if subscription is still valid
            $newvalidity = date('m/d/Y h:i:s', strtotime("$currentvalidity $period"));
            require_once('core/dbconnect.php');
            mysql_query("UPDATE subscriptions SET validity='$newvalidity' WHERE username='$ppusername'");
            //Add invoice to user
            if ($period == '+1 month')
            $product = 'NLTVMee.com voor 1 maand';
            if ($period == '+1 year')
            $product = 'NLTVMee.com voor 1 jaar';
            $paymentmethode = 'Paypal';
            $oldvalid = $currentvalidity;
            $newvalid = $newvalidity;
            require_once('core/dbconnect.php');
            mysql_query("INSERT INTO invoices VALUES ('','$date','$ppusername','$product','$paymentmethode','$payment_currency','$payment_amount','$oldvalid','$newvalid')");
        
        else
        
            //Add period from current date if validity is not valid anymore
            $newvalidity = date('m/d/Y h:i:s', strtotime("$date $period"));
            require_once('core/dbconnect.php');
            mysql_query("UPDATE subscriptions SET validity='$newvalidity' WHERE username='$ppusername'");
            //Ad invoice to user
            if ($period == '+1 month')
            $product = 'NLTVMee.com voor 1 maand';
            if ($period == '+1 year')
            $product = 'NLTVMee.com voor 1 jaar';
            $paymentmethode = 'Paypal';
            $newvalid = $newvalidity;
            require_once('core/dbconnect.php');
            mysql_query("INSERT INTO invoices VALUES ('','$date','$ppusername','$product','$paymentmethode','$payment_currency','$payment_amount','','$newvalid')");
        
    
    else
    
        //User has never purchased before. Make new subscription record and add invoice.
        //Add period from current date if validity is not valid anymore
        $newvalidity = date('m/d/Y h:i:s', strtotime("$date $period"));
        require_once('core/dbconnect.php');
        mysql_query("INSERT INTO subscriptions VALUES ('','$ppusername','$newvalidity')");
        //Ad invoice to user
        if ($period == '+1 month')
        $product = 'NLTVMee.com voor 1 maand';
        if ($period == '+1 year')
        $product = 'NLTVMee.com voor 1 jaar';
        $paymentmethode = 'Paypal';
        $newvalid = $newvalidity;
        require_once('core/dbconnect.php');
        mysql_query("INSERT INTO invoices VALUES ('','$date','$ppusername','$product','$paymentmethode','$payment_currency','$payment_amount','','$newvalid')");
    


//End
else if (strcmp ($res, "INVALID") == 0)




fclose ($fp);

?>

如您所见,它现在配置了 Paypal 沙箱 URL 以进行试用,但是当我这样做并付款时,数据库中没有任何变化,正如您所见,IPN 处理程序页面应该会发生变化。

【问题讨论】:

我忘了补充,这两部分代码也在两个不同的页面上。 【参考方案1】:

这是一个空白页面,因为您将 ipn 侦听器作为您的 return 值,这是您在完成后发送的位置,但没有发送任何信息。回发到 Paypal 将没有值,您的代码将失败。 (from the docs - 买家完成付款后,PayPal 将他们的浏览器重定向到的 URL。例如,在您的网站上指定一个 URL,显示“感谢您的付款”页面。

<input type="hidden" name="return" value="http://www.mydomain.com/pp-ipn-handler.php">

您需要使用notify_url (from the docs - PayPal 以即时付款通知消息的形式发布付款信息的 URL。

<input type="hidden" name="notify_url" value="http://www.mydomain.com/pp-ipn-handler.php">
<input type="hidden" name="return" value="http://www.mydomain.com/payment_complete_thank_message.php">

编辑 我在代码中看到 3 个额外的错误

您在第 65 行的查询是 $subscriptionrecord,但在第 66 行您使用的是$userinfo

    $subscriptionrecord = mysql_query("SELECT * FROM subscriptions WHERE username='$ppusername'");
    $row = mysql_fetch_array($userinfo);

更正 以下这些不正确,因为将它们括在引号中 "$currentvalidity $period"$currentvalidity.$period 相同

在第 72 行,您需要将 $currentvalidity$period 连接到 strtotime() - $currentvalidity.$period

$newvalidity = date('m/d/Y h:i:s', strtotime("$currentvalidity $period"));

在第 #91 和 #111 行,您需要将 $date$period 连接到 strtotime() - $date.$period

$newvalidity = date('m/d/Y h:i:s', strtotime("$date $period"));

【讨论】:

还是没有运气。我已将返回值更改为成功 url,然后添加 notify_url 值以转到 ipn 文件,如前所述。它现在按预期转到成功 url,但 ipn 处理程序仍然不起作用,因为我没有将记录添加到数据库中,所以那里仍然有问题。 这让我朝着正确的方向前进,但显然这是我需要添加的内容。能否请您查看 ipn 处理程序代码,看看有什么问题,看看为什么它不响应 Paypal 提供的信息。 您可以做的第一件事是将header('Location: ppcommerror.php');header('Location: ppsuccess.php'); 更改为mail(...)error_handler,因为此页面/脚本将在后端运行并且没有用户会看到它。这与我所做的类似。我会看一下,但根据这里的内容,我可能不会发现任何其他错误。 我现在已经删除了重新路由 (header('Location...) 行。但这仍然没有帮助。感谢您再看一看。 我在代码中发现了另外 3 个问题。我已在 Edit 下将它们添加到我的答案中

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