在 PHP 中使用 PayPal IPN 获取自定义字段 [英] Grabbing a Custom Field with PayPal IPN in PHP

问题描述

因此，在我的网站上，人们可以通过单击立即付款"来订购他们想要的升级并在框中输入他们的用户名.到目前为止，我会进入 PayPal，查看付款，查看 Minecraft 用户名字段，然后手动升级.现在我想开始使用 IPN，这样我就可以自动化我一直在做的所有工作.

这是升级选项的 HTML 代码:

<form action="https://www.paypal.com/cgi-bin/webscr" method="post"><input type="hidden" name="cmd" value="_s-xclick"><input type="hidden" name="hosted_button_id" value="W2RH7VA3YS3Y4"><表格><tr><td width=75%><h2>自定义地图 - $5.00</h2></td><td><input type="hidden" name="on0" value="Minecraft Username">Minecraft Username<input type="text" name="os0" maxlength="200"></td></tr><tr><td>上传您想玩的任何地图的能力！也许是生存岛地图?你打赌！或者饥饿游戏！</td><td><input type="submit" class="btn btn-primary" value="Buy Now" border="0" name="submit" alt="PayPal - 更安全、更简单的在线支付方式！"></td></tr></表单>

这里是 PHP 代码，可以简单地向我发送一封电子邮件，其中包含我需要尝试使其正常工作的信息:

  $value) {if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1) {$value = urlencode(stripslashes($value));} 别的 {$value = urlencode($value);}$req .= "&$key=$value";}//第 2 步:将 IPN 数据发回贝宝进行验证$ch = curl_init('https://www.paypal.com/cgi-bin/webscr');curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);curl_setopt($ch, CURLOPT_POSTFIELDS, $req);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));//在没有与根授权证书捆绑在一起的类似 wamp 的环境中，//请从http://curl.haxx.se/docs/caextract.html"下载'cacert.pem'并设置目录路径//证书如下所示.//curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) .'/cacert.pem');if( !($res = curl_exec($ch)) ) {//error_log("Got " . curl_error($ch) . " 处理IPN数据时");curl_close($ch);出口;}curl_close($ch);//第 3 步:检查 IPN 验证结果并采取相应措施if (strcmp ($res, "VERIFIED") == 0) {//检查payment_status 是否已完成//检查 txn_id 之前没有被处理过//检查receiver_email 是否是您的主要PayPal 电子邮件//检查payment_amount/payment_currency 是否正确//处理付款//将发布的变量分配给局部变量$item_name = $_POST['item_name'];$item_number = $_POST['item_number'];$payment_status = $_POST['payment_status'];$payment_amount = $_POST['mc_gross'];$payment_currency = $_POST['mc_currency'];$txn_id = $_POST['txn_id'];$receiver_email = $_POST['receiver_email'];$payer_email = $_POST['payer_email'];$custom = $_POST['on0'];$message = "订单已被 IPN 化！" .$item_name ."".$item_number ."".$payment_amount ."".$txn_id ."".$自定义;邮件('[e-mail]', 'PayPal IPN', $message);} else if (strcmp ($res, "INVALID") == 0) {mail('[e-mail]', 'PayPal IPN', '错误');}?>

我遇到的问题是:

$custom = $_POST['on0'];

我按照上面的方法尝试过，并且:

$custom = $_POST['custom'];

第一个是因为这是 Minecraft Username 字段的名称，第二个我尝试了因为我读到它应该是这样，但无论哪种方式它都没有返回任何内容.任何帮助都会很棒！谢谢！

解决方案

转储 $_POST 的结果并查看哪个键适合您正在寻找的值.使用 var_dump 或 print_r

//显示值类型等更多细节var_dump($_POST);//只显示 key =>数组的值关系打印_r($_POST);

编辑

我刚刚意识到使用 ipn 无法看到此输出.在这种情况下，您始终可以序列化整个 $_POST 数组并通过电子邮件发送.

$post_data_string = serialize($_POST);邮件('[e-mail]', 'PayPal IPN', $post_data_string);

So on my website, people are able to order upgrades by clicking "Pay Now" for the upgrade they want and by entering their username in the box. Up until now, I would then go in to PayPal, see the payment, and look at the Minecraft Username field, and upgrade it by hand. Now I want to start using IPN so that I can automate all of the work that i've been doing.

Here is the HTML code for a upgrade option:

<div class=donationBox>

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="W2RH7VA3YS3Y4">
<table>
<tr>
<td width=75%><h2>Custom Maps - $5.00</h2></td>
<td><input type="hidden" name="on0" value="Minecraft Username">Minecraft Username<input type="text" name="os0" maxlength="200"></td>
</tr>
<tr>

<td>The ability to upload any map you want to play on! Maybe a survival island map? You bet! Or the Hunger Games!</td>
<td><input type="submit" class="btn btn-primary" value="Buy Now" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"></td>
</tr>
</table>
</form>
</div>

And here is the PHP code to simply send me an Email with the info I need to try to get it working:

  <?php

  // STEP 1: Read POST data

  // reading posted data from directly from $_POST causes serialization 
  // issues with array data in POST
  // reading raw POST data from input stream instead. 
  $raw_post_data = file_get_contents('php://input');
  $raw_post_array = explode('&', $raw_post_data);
  $myPost = array();
  foreach ($raw_post_array as $keyval) {
    $keyval = explode ('=', $keyval);
    if (count($keyval) == 2)
       $myPost[$keyval[0]] = urldecode($keyval[1]);
  }
  // read the post from PayPal system and add 'cmd'
  $req = 'cmd=_notify-validate';
  if(function_exists('get_magic_quotes_gpc')) {
     $get_magic_quotes_exists = true;
  } 
  foreach ($myPost as $key => $value) {        
     if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1) { 
          $value = urlencode(stripslashes($value)); 
     } else {
          $value = urlencode($value);
     }
     $req .= "&$key=$value";
  }


  // STEP 2: Post IPN data back to paypal to validate

  $ch = curl_init('https://www.paypal.com/cgi-bin/webscr');
  curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
  curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));

  // In wamp like environments that do not come bundled with root authority certificates,
  // please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path 
  // of the certificate as shown below.
  // curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem');
  if( !($res = curl_exec($ch)) ) {
      // error_log("Got " . curl_error($ch) . " when processing IPN data");
      curl_close($ch);
      exit;
  }
  curl_close($ch);


  // STEP 3: Inspect IPN validation result and act accordingly

  if (strcmp ($res, "VERIFIED") == 0) {
  // check whether the payment_status is Completed
  // check that txn_id has not been previously processed
  // check that receiver_email is your Primary PayPal email
  // check that payment_amount/payment_currency are correct
  // process payment

  // assign posted variables to local variables
  $item_name = $_POST['item_name'];
  $item_number = $_POST['item_number'];
  $payment_status = $_POST['payment_status'];
  $payment_amount = $_POST['mc_gross'];
  $payment_currency = $_POST['mc_currency'];
  $txn_id = $_POST['txn_id'];
  $receiver_email = $_POST['receiver_email'];
  $payer_email = $_POST['payer_email'];
  $custom = $_POST['on0'];
  $message = "An order has been IPNified! " . $item_name . " " . $item_number . " " . $payment_amount . " " . $txn_id . " " . $custom;
  mail('[e-mail]', 'PayPal IPN', $message);
  } else if (strcmp ($res, "INVALID") == 0) {
      mail('[e-mail]', 'PayPal IPN', 'Errors');
  }
  ?>

The problem that I'm having is here:

$custom = $_POST['on0'];

I tried it as the above and:

$custom = $_POST['custom'];

The first one because that's the name of the Minecraft Username field, and the second I tried because I read that's what it should be, but either way it just didn't return anything. Any help would be great! Thanks!

解决方案

Dump the results of $_POST and see which key fits the values you're looking for. Use either var_dump or print_r

// Displays more detail such as value types
var_dump($_POST);

// Only displays key => value relationships of an array
print_r($_POST);

EDIT

I just realized it's not possible to see the output of this using ipn. In this case you can always serialize the entire $_POST array and send it in an email.

$post_data_string = serialize($_POST);
mail('[e-mail]', 'PayPal IPN', $post_data_string);

这篇关于在 PHP 中使用 PayPal IPN 获取自定义字段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！