我已经待了3天了，但仍然无法正常工作。
我想要做的是从IPN侦听器获取PayPal响应，以便我可以相应地修改数据库，但是无论我做什么，它都将无法工作。我已经在我的PayPal沙箱帐户中完成了以下操作：
启用自动返回
设置自动返回网址（“ paypal /成功”）
重定向到自动返回URL的效果很好，并且我在成功页面上收到了付款数据，但是由于我以外的原因，IPN无法处理。快速浏览我的PayPal个人资料上的IPN历史记录表明邮件正在发送，但是我最后没有收到。
这是我当前的IPN侦听器： Paypal / ipn
public function ipn() {
//Build the data to post back to Paypal
$postback = 'cmd=_notify-validate';
// go through each of the posted vars and add them to the postback variable
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$postback .= "&$key=$value";
}
// build the header string to post back to PayPal system to validate
$header = "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Host: www.sandbox.paypal.com\r\n";//or www.sandbox.paypal.com
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($postback) . "\r\n\r\n";
// Send to paypal or the sandbox depending on whether you're live or developing
// comment out one of the following lines
$fp = fsockopen ('www.sandbox.paypal.com', 443, $errno, $errstr, 30);//open the connection
//$fp = fsockopen ('www.paypal.com', 80, $errno, $errstr, 30);
// or use port 443 for an SSL connection
//$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);
if ( ! $fp ) {
// HTTP ERROR Failed to connect
$message = 'HTTP ERROR Failed to connect!';
$this->email_me($message);
} else { // if we've connected OK
fputs ($fp, $header . $postback); //post the data back
while ( ! feof($fp) ) {
$response = fgets ($fp, 1024);
if (strcmp (trim($response), "VERIFIED") == 0) { //It's verified
//read the payment details and the account holder
$payment_status = $_POST['payment_status'];
$receiver_email = urldecode($_POST['receiver_email']);
// further checks
if( ($payment_status == 'Completed') && ($receiver_email == $this->business_email) ) {
$message = 'IPN verified successfully!';
$this->email_me($message);
// Insert the transaction data in the database
$this->product_model->insert_transaction_details($_POST);
} else {
$message = 'Payment could not be verified!';
$this->email_me($message);
}
} else {
$message = 'IPN invalid!';
$this->email_me($message);
}
}
}
}
有人可以指出我正确的方向吗？ 此外，无论如何，我是否可以在chrome调试器上或在PayPal Sandbox仪表板中检查IPN响应（“已验证”或“无效”）？我可以在信息中心中看到投放状态，但在任何地方都不会显示“已验证”或“无效”。
答案 0 :(得分：0)
使用php：// input代替$ _POST
reson在这里详细描述：PHP "php://input" vs $_POST
paypal还提供了有关在php中实现IPN侦听器及其文档的文档 Paypal tutorial
答案 1 :(得分：0)
未获得IPN的原因之一是因为连接到Paypal时出现问题，解决此问题所需要做的就是更改端口。
因此对于
$fp = fsockopen($url_parsed['host'],'80',$err_num,$err_str,30);
收件人
$fp = fsockopen($url_parsed['host'],'443',$err_num,$err_str,30);
您也可以从here
进行引用答案 2 :(得分：0)
我找到了解决方案！我在控制器中编写了IPN处理程序，该控制器允许访问以admin身份登录的用户。显然，IPN方法拒绝访问PayPal以验证交易。我弄清楚了这一点，并在另一个控制器中编写了IPN方法，并且一切正常。
我也将我的IPN处理程序更改为该代码（尽管原始代码可能仍然有效……我没有尝试过）：
class Paypal_ipn extends MY_Controller {
public function __construct() {
parent::__construct();
$this->load->model('product_model');
$this->sandbox = $this->config->item('sandbox');
$this->paypal_host = $this->config->item('paypal_host');
$this->paypal_url = $this->config->item('paypal_url');
$this->business_email = $this->config->item('business');
}
public function ipn() {
// 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
$ch = curl_init($this->paypal_url);
$headers = array(
'POST /cgi-bin/webscr HTTP/1.1',
'Host: ' . $this->paypal_host,
'Content-Type: application/x-www-form-urlencoded; charset=utf-8',
'Content-Length: ' . strlen($req),
'User-Agent: PayPal-IPN-VerificationScript',
'Connection: Close'
);
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, $headers);
if( !($res = curl_exec($ch)) ) {
curl_close($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'];
$receiver_email = urldecode($_POST['receiver_email']);
$payer_email = $_POST['payer_email'];
$school_id = $_POST['custom'];
// further checks
if($payment_status == 'Completed') {
$message = 'IPN verified successfully!';
$this->email_developer($message);
// Insert the transaction data in the database
$this->product_model->insert_transaction_details($_POST);
} else {
$message = 'Payment could not be verified!';
$this->email_developer($message);
}
} else if (strcmp ($res, "INVALID") == 0) {
// log for manual investigation
$message = 'IPN Invalid!';
$this->email_developer($message);
}
}
}
对于那些可能遇到我的困境的人，请确保您还执行以下操作：
我希望它能对某人有所帮助。