Question

我运行此代码没有任何错误，但数据库没有更新。我正在从Paypal接收可变数据。为了验证Post数据，我在脚本的开头添加了两行来将变量写入文本文件。服务器使用PHP 5.4。我希望你们能找到问题。

<?php  

/* checking for POST variables & writing to text file */
$posted_data = print_r($_POST,true);
file_put_contents('IPN_data.txt',$posted_data);

/* 
Database config here

*/

/* Connect to database */

$conn = new mysqli($db_host, $db_user, $db_pass, $db_database);
if ($conn->connect_error) {
            die("Connection failed: " . $conn->connect_error);
        } 
//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/1.1\r\n"; 
$header .= "Content-Type: application/x-www-form-urlencoded\r\n"; 
$header .= "Host: www.sandbox.paypal.com\r\n"; 
$header .= "Connection: close\r\n"; 
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n"; 
$fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30); 
// 

$item = $_POST['item_name'];
$transaction_id = $_POST['txn_id'];
$payeremail = $_POST['payer_email'];

//error connecting to paypal 
if (!$fp) { 
// 
} 

//successful connection     
if ($fp) { 
fputs ($fp, $header . $req); 

while (!feof($fp)) { 
    $res = fgets ($fp, 1024); 
    $res = trim($res); //NEW & IMPORTANT 

    if (strcmp($res, "VERIFIED") == 0) { 
        //insert order into database     
     if (strcmp ($payment_status, "Completed") == 0) {

           /* update database */
           if($item == 'Learn HTML'){
                    $sql = "INSERT INTO dc_html (transaction_id,email_id)
                    VALUES ( '$transaction_id','$payeremail')";
                    $conn->close();
                    break;

           }

           if($item == 'Learn Css') {
                    $sql = "INSERT INTO dc_css (transaction_id,email_id)
                    VALUES ( '$transaction_id','$payeremail')";
                    $conn->close();
                    break;
           }



      }





    } 

    if (strcmp ($res, "INVALID") == 0) { 
        //insert into DB in a table for bad payments for you to process later 
    } 
} 

fclose($fp); 
} 

?>

Answer 1

您似乎将查询分配给$ sql变量，但它不会出现在您实际调用$ conn-＆gt;查询（$ sql）的代码中。

如果你不执行查询，它怎么能插入数据库？

同时添加一些日志记录可能会帮助您更轻松地进行调试。

如果发送电子邮件或将错误写入文件

回发失败
数据库连接失败
db query execution failed

希望这有帮助。

我似乎无法找到为什么这个IPN代码没有更新数据库

1 个答案: