paypal IPN 不向 mysql 添加数据？

Question

paypal IPN由于某种原因没有将数据输入mysql数据库！ 我正在使用贝宝沙箱，付款通过，它们显示在我的沙箱帐户中，但详细信息不会显示在 mysql 中！！

这是我的 IPN 文件。尽管我将其称为payments.php，并且我还使用IPN模拟器指向它，但它确实表示IPN发送成功。所以我不知道这里有什么问题：

<?php
// Database variables
$host = "localhost"; //database location
$user = "my details"; //database username
$pass = "pass"; //database password
$db_name = "my details"; //database name

// PayPal settings
$paypal_email = 'MYSANDBOXEMAIL@PAYPAL.COM';
$return_url = 'http://some site/';
$cancel_url = 'http://some site/';
$notify_url = 'http://some site/thanks.php';

$item_name = 'Test Item';
$item_amount = 5.00;

// Include Functions
include("functions.php");

//Database Connection
$link = mysql_connect($host, $user, $pass);
mysql_select_db($db_name);

// Check if paypal request or response
if (!isset($_POST["txn_id"]) && !isset($_POST["txn_type"])){

    // Firstly Append paypal account to querystring
    $querystring .= "?business=".urlencode($paypal_email)."&";  

    // Append amount& currency (£) to quersytring so it cannot be edited in html

    //The item name and amount can be brought in dynamically by querying the $_POST['item_number'] variable.
    $querystring .= "item_name=".urlencode($item_name)."&";
    $querystring .= "amount=".urlencode($item_amount)."&";

    //loop for posted values and append to querystring
    foreach($_POST as $key => $value){
        $value = urlencode(stripslashes($value));
        $querystring .= "$key=$value&";
    }

    // Append paypal return addresses
    $querystring .= "return=".urlencode(stripslashes($return_url))."&";
    $querystring .= "cancel_return=".urlencode(stripslashes($cancel_url))."&";
    $querystring .= "notify_url=".urlencode($notify_url);

    // Append querystring with custom field
    //$querystring .= "&custom=".USERID;

    // Redirect to paypal IPN
    header('location:https://www.sandbox.paypal.com/cgi-bin/webscr'.$querystring);
    exit();

}else{

    // Response from Paypal

    // read the post from PayPal system and add 'cmd'
    $req = 'cmd=_notify-validate';
    foreach ($_POST as $key => $value) {
        $value = urlencode(stripslashes($value));
        $value = preg_replace('/(.*[^%^0^D])(%0A)(.*)/i','${1}%0D%0A${3}',$value);// IPN fix
        $req .= "&$key=$value";
    }

    // assign posted variables to local variables
    $data['item_name']          = $_POST['item_name'];
    $data['item_number']        = $_POST['item_number'];
    $data['payment_status']     = $_POST['payment_status'];
    $data['payment_amount']     = $_POST['mc_gross'];
    $data['payment_currency']   = $_POST['mc_currency'];
    $data['txn_id']             = $_POST['txn_id'];
    $data['receiver_email']     = $_POST['receiver_email'];
    $data['payer_email']        = $_POST['payer_email'];
    $data['custom']             = $_POST['custom'];

    // 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";

    $fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30); 

    if (!$fp) {
        // HTTP ERROR
    } else {    

        fputs ($fp, $header . $req);
        while (!feof($fp)) {
            $res = fgets ($fp, 1024);
            if (strcmp($res, "VERIFIED") == 0) {

                // Used for debugging
                //@mail("you@youremail.com", "PAYPAL DEBUGGING", "Verified Response<br />data = <pre>".print_r($post, true)."</pre>");

                // Validate payment (Check unique txnid & correct price)
                $valid_txnid = check_txnid($data['txn_id']);
                $valid_price = check_price($data['payment_amount'], $data['item_number']);
                // PAYMENT VALIDATED & VERIFIED!
                if($valid_txnid && $valid_price){               
                    $orderid = updatePayments($data);       
                    if($orderid){                   
                        // Payment has been made & successfully inserted into the Database                              
                    }else{                              
                        // Error inserting into DB
                        // E-mail admin or alert user
                    }
                }else{                  
                    // Payment made but data has been changed
                    // E-mail admin or alert user
                }                       

            }else if (strcmp ($res, "INVALID") == 0) {

                // PAYMENT INVALID & INVESTIGATE MANUALY! 
                // E-mail admin or alert user

                // Used for debugging
                //@mail("you@youremail.com", "PAYPAL DEBUGGING", "Invalid Response<br />data = <pre>".print_r($post, true)."</pre>");
            }       
        }       
    fclose ($fp);
    }   
}
?>

更新：这是function.php..我希望这可以帮助有人帮助我解决这个问题！

<?php
// functions.php
function check_txnid($tnxid){
    global $link;
    return true;
    $valid_txnid = true;
    //get result set
    $sql = mysql_query("SELECT * FROM payments WHERE txnid = '$tnxid'", $link);     
    if($row = mysql_fetch_array($sql)) {
        $valid_txnid = false;
    }
    return $valid_txnid;
}

function check_price($price, $id){
    $valid_price = false;
    //you could use the below to check whether the correct price has been paid for the product

    /* 
    $sql = mysql_query("SELECT amount FROM `products` WHERE id = '$id'");       
    if (mysql_numrows($sql) != 0) {
        while ($row = mysql_fetch_array($sql)) {
            $num = (float)$row['amount'];
            if($num == $price){
                $valid_price = true;
            }
        }
    }
    return $valid_price;
    */
    return true;
}

function updatePayments($data){ 
    global $link;
    if(is_array($data)){                
        $sql = mysql_query("INSERT INTO payments (txnid, payment_amount, payment_status, itemid, createdtime) VALUES (
                '".$data['txn_id']."' ,
                '".$data['payment_amount']."' ,
                '".$data['payment_status']."' ,
                '".$data['item_number']."' ,
                '".date("Y-m-d H:i:s")."' 
                )", $link);
    return mysql_insert_id($link);
    }
}
?>

Answer 1

看起来你工作有点“盲目”，因为这是一个“无头”脚本，你不知道它在哪里失败。

在各个点添加一些 error_log 行，以便您可以通过脚本检查流程。特别是，在执行数据库查询之前添加 error_log($sql) 会将语句打印到错误日志中。拿这个并尝试在数据库中独立运行它。可能是某些表约束失败而不是 PHP 中的错误

在流程的各个点添加日志行并在这些点打印出变量也将帮助您诊断发生故障的位置，并希望让您更准确地查明错误。

Answer 2

尝试Printing 或echoing 这些值替换 - // Payment has been made & successfully inserted into the Database

print $data['item_name']; print $data['item_number'];.......

然后我可以从那里更新到正确的地方和错误的地方。