如何从教皇 IPN 获得 php 响应

Question

我已经创建了一个PayPal的ipn响应，现在我想知道如何通过使用GET或POST在php中获取响应。我是第一次这样做.所以，当我得到ipn响应时，我不知道下一步该怎么做。建议一些正确捕获PayPal IPN 数据的方法。提前谢谢。

<?php
    class Paypal_IPN
    {
        public function __construct($mode= 'live')
        {
            //https://www.paypal.com/cgi-bin/webscr
            if($mode == 'live'){
            $this->_url = 'https://www.paypal.com/cgi-bin/webscr';}
            else{
            $this->_url = 'https://www.sandbox.paypal.com/cgi-bin/webscr';  }  

        }
        public function run()
        {
            $postFields = 'cmd=_notify-validate';

            foreach($_POST as $key => $value)
            {
                $postFields .= "&$key=".urlencode($value);
            }
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $this->_url);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_HEADER, false);
            curl_setopt($ch, CURLOPT_TIMEOUT, 30);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            $result = curl_exec($ch);
            curl_close($ch);
            $fh = fopen('result.txt','w');
            fwrite($fh, $result . '--' . $postFields);
            fclose($fh);
            echo "abc";
            echo $result; 
        }
    }
?>

Answer 1

最近我在一个网站上PayPal使用了IPN。所以我可以帮你。这是为我工作的代码。让我知道它是否对您有帮助。

class Paypal_IPN
{
    public $_url;
    public function __construct($mode= 'live')
    {
        //https://www.paypal.com/cgi-bin/webscr
        if($mode == 'live'){
            $this->_url = 'https://www.paypal.com/cgi-bin/webscr';
        }else{
            $this->_url = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
        }
    }
    public function run(){
        // 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->_url);
        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($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));
        // In wamp like environments that do not come bundled with root authority certificates,
        // please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path 
        // of the certificate as shown below.
        // curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem');
        if( !($res = curl_exec($ch)) ) {
            // error_log("Got " . curl_error($ch) . " when processing IPN data");
            curl_close($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 like below
            // just an example. Visit paypal ipn variables for more details
            $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 = $_POST['receiver_email'];
            $payer_email = $_POST['payer_email'];
            // <---- HERE you can do your INSERT to the database
            //Your code here.
        } else if (strcmp ($res, "INVALID") == 0) {
            // log for manual investigation
        }
    }
}