Question

愚蠢的问题也许..

如何知道我与PayPal API的集成是否正常？

我的意思是代码转到PayPal很好，PayPal上的付款似乎工作正常，然后用户在付款后重定向到我网站上的右页。

所以我假设它运作正常。

但PayPal表格中没有显示价格。

我的测试帐户无需收费

我的其他测试帐户（卖家）没有收到任何信息

我认为它的工作原理只是因为用户被重定向到我网站上的成功页面！

但我怎么知道它确实有效？！

没有什么能让我完全确定它有效!!

请告知..

我正在使用Express Checkout API

我只是向客户收取单项费用，没有PayPal授权等等。只是简单的PayPal销售。

谢谢

<?php

require_once ("paypalfunctions.php");
// ==================================
// PayPal Express Checkout Module
// ==================================

//'------------------------------------
//' The paymentAmount is the total value of 
//' the shopping cart, that was set 
//' earlier in a session variable 
//' by the shopping cart page
//'------------------------------------
$creditsAmount = $_GET["creditsAmount"];
if ($creditsAmount <= 4) {
$price = 10;
}elseif($creditsAmount <= 19 && $creditsAmount >= 5) {
$price = 7.5;
}else{
$price = 5;
}
$paymentAmount = $price * $creditsAmount;
$SubmID = $_GET["SubmID"];
$memberID = (int)$_COOKIE["memberID"];
//'------------------------------------
//' The currencyCodeType and paymentType 
//' are set to the selections made on the Integration Assistant 
//'------------------------------------
$currencyCodeType = "USD";
$paymentType = "Sale";

//'------------------------------------
//' The returnURL is the location where buyers return to when a
//' payment has been succesfully authorized.
//'
//' This is set to the value entered on the Integration Assistant 
//'------------------------------------
$returnURL = "http://domain.co.uk/modules/yobilab/copyright/PAYPAL_process.php?creditsAmount=".$creditsAmount; // AGGIUNGERE ID SUBMISSION
//$returnURL = "http://domain.co.uk/modules/yobilab/copyright/PAYPAL_process.php"; // AGGIUNGERE ID SUBMISSION
//'------------------------------------
//' The cancelURL is the location buyers are sent to when they hit the
//' cancel button during authorization of payment during the PayPal flow
//'
//' This is set to the value entered on the Integration Assistant 
//'------------------------------------
$cancelURL = "http://domain.co.uk/m/copyright/overview/".$SubmID; // AGGIUNGERE ID SUBMISSION
//$cancelURL = "http://domain.co.uk/m/copyright/error/"; // AGGIUNGERE ID SUBMISSION

//'------------------------------------
//' Calls the SetExpressCheckout API call
//'
//' The CallShortcutExpressCheckout function is defined in the file PayPalFunctions.php,
//' it is included at the top of this file.
//'-------------------------------------------------
$resArray = CallShortcutExpressCheckout ($paymentAmount, $currencyCodeType, $paymentType, $returnURL, $cancelURL);
$ack = strtoupper($resArray["ACK"]);
if($ack=="SUCCESS" || $ack=="SUCCESSWITHWARNING")
{
    RedirectToPayPal ( $resArray["TOKEN"] );
} 
else  
{
    //Display a user friendly Error on the page using any of the following error information returned by PayPal
    $ErrorCode = urldecode($resArray["L_ERRORCODE0"]);
    $ErrorShortMsg = urldecode($resArray["L_SHORTMESSAGE0"]);
    $ErrorLongMsg = urldecode($resArray["L_LONGMESSAGE0"]);
    $ErrorSeverityCode = urldecode($resArray["L_SEVERITYCODE0"]);

    echo "SetExpressCheckout API call failed. ";
    echo "Detailed Error Message: " . $ErrorLongMsg;
    echo "Short Error Message: " . $ErrorShortMsg;
    echo "Error Code: " . $ErrorCode;
    echo "Error Severity Code: " . $ErrorSeverityCode;
}
?>

Answer 1

Paypal在其开发者网站上有一个IPN（即时付款通知）测试工具 - 您可以在交易完成后使用它来执行回调。然后你可以写一个PHP脚本来检查付款状态，验证它是否成功，然后做你想做的任何事情......

检查开发人员沙箱中的文档以了解它是如何工作的，他们提供了一些用于测试的良好示例代码......

Answer 2

使用Paypal IPN（即时付款通知）通过您的html发送该网址，然后在该页面上输入此代码，您将在电子邮件中收到回复

<?php 
error_reporting(E_ALL ^ E_NOTICE); 
$email = $_GET['ipn_email']; 
$header = ""; 
$emailtext = ""; 
// Read the post from PayPal and add 'cmd' 
$req = 'cmd=_notify-validate'; 
if(function_exists('get_magic_quotes_gpc')) 
{  
    $get_magic_quotes_exits = true; 
} 
foreach ($_POST as $key => $value) 
// Handle escape characters, which depends on setting of magic quotes 
{  
    if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1){  
        $value = urlencode(stripslashes($value)); 
    } else { 
        $value = urlencode($value); 
    } 
    $req .= "&$key=$value"; 
} 
// Post back to PayPal 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"; 
$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30); 


// Process validation from PayPal 
// TODO: This sample does not test the HTTP response code. All 
// HTTP response codes must be handles or you should use an HTTP 
// library, such as cUrl 

if (!$fp) { // HTTP ERROR 
} else { 
// NO HTTP ERROR 
fputs ($fp, $header . $req); 
while (!feof($fp)) { 
    $res = fgets ($fp, 1024); 
    if (strcmp ($res, "VERIFIED") == 0) { 
        // TODO: 
        // Check the payment_status is Completed 
        // Check that txn_id has not been previously processed 
        // Check that receiver_email is your Primary PayPal email 
        // Check that payment_amount/payment_currency are correct 
        // Process payment 
        // If 'VERIFIED', send an email of IPN variables and values to the 
        // specified email address 
        foreach ($_POST as $key => $value){ 
        $emailtext .= $key . " = " .$value ."\n\n"; 
        } 
        mail($email, "Live-VERIFIED IPN", $emailtext . "\n\n" . $req); 
    } else if (strcmp ($res, "INVALID") == 0) { 
        // If 'INVALID', send an email. TODO: Log for manual investigation. 
        foreach ($_POST as $key => $value){ 
        $emailtext .= $key . " = " .$value ."\n\n"; 
        } 
        mail($email, "Live-INVALID IPN", $emailtext . "\n\n" . $req); 
    }    
} 
fclose ($fp); 
?>

Answer 3

您可以使用IPN模拟结帐请求，但它只会将请求发送给您的URL，以便您可以测试您的应用程序。如果你想测试你是否正在收取适当的金额或类似的东西，你必须改变你用来购买东西的形式。它应该指向沙箱网址https://www.sandbox.paypal.com/cgi-bin/webscr

，而不是指向paypal.com

感觉你真的在买，但你不是，因为你将使用测试账户。购买后，您可以访问沙箱，使用测试帐户登录，看看如何赚钱（买家），另一个人有更多钱（卖家）。

PHP PayPal API和沙盒问题

3 个答案: