贝宝沙盒PDT失败4020 [英] Paypal sandbox PDT Fail 4020

问题描述

因此，我创建了一个沙箱交易，并试图在我的感谢页面上获取它的数据.

So, I've created a sandbox transaction and am trying to get the data for it on my thank you page.

<?php

$tx = $_REQUEST['tx'];
$pdti = "REDACTED";

$url = "https://www.sandbox.paypal.com/cgi-bin/webscr";

$data = array("tx" => $tx, "at" => $pdti,"cmd" => "_notify-synch");

$options = array(
    "http" => array(
        "header" => "Content-type: application/x-www-form-urlencoded\r\n",
    "method" => "POST",
    "content" => http_build_query($data),
    ),
);

$context = stream_context_create($options);
$result = file_get_contents($url,false,$context);

var_dump($result);

?>

但是当我转到thankyoupage.php?tx = ID时，其中"ID"是交易ID，我得到以下信息:

But when I go to thankyoupage.php?tx=ID, where 'ID' is the transaction ID, I get the following:

string(16) "FAIL Error: 4020"

我找不到任何详细说明此错误含义的文档，并且完全陷在其中，因此，对于任何反馈，我将不胜感激.

I can't find any documentation that details what this error means, and am completely stuck, so I'd be grateful for any feedback.

推荐答案

很可能输入了错误的身份验证令牌($pdti).

Most probably your Authentication Token ($pdti) is incorrectly entered.

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