paypal ipnはitem_nameと数量を返しません

Question

私は自分のカスタムショッピングカートでオンラインショッピングをしようとしています。ここで

は、HTMLのコードです：

<form name="paypalSubmit" action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="POST"> 
    <input type="hidden" name="cmd" value="_cart"> 
    <input type="hidden" name="upload" value="1"> 
    <input type="hidden" name="business" value="value"> 
    <input type="hidden" name="currency_code" value="EUR"> 
    <input type="hidden" name="cancel_return" value="link"> 
    <input type="hidden" name="return" value="link"> 

       <input type="hidden" name="item_name_1" value='Stiklines is ledo'> 
      <input type="hidden" name="amount_1" value=0.56> 
      <input type="hidden" name="quantity1" value=3> 

         <input type="hidden" name="item_name_2" value='RGB lempute su pultu'> 
      <input type="hidden" name="amount_2" value=0.68> 
      <input type="hidden" name="quantity2" value=1> 


    <input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" name="submit" alt="Make payments with PayPal - it's fast, free and secure!"> 
</form> 

すべてが正常に動作します。支払いが完了すると、ipnは自分のipn_listenerにヒットし、データベースを更新します。ただし、item_nameもquantityも返されません。従って、payment_status,mc_gross,mc_currency,txn_id,payer_email、payment_dateを返す。

誰でも私は何が欠けているのか理解できますか？どうもありがとうございました。

EDIT：

ipn_listener.php

<?php 
require_once("dbcontroller.php"); 
$db_handle = new DBController(); 
// 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 

$ch = curl_init('https://www.sandbox.paypal.com/cgi-bin/webscr'); 
curl_setopt($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 
    $item_name = $_POST['item_name']; 
    $item_quantity = $_POST['quantity']; 
    $payment_status = $_POST['payment_status']; 
    $payment_amount = $_POST['mc_gross']; 
    $payment_currency = $_POST['mc_currency']; 
    $txn_id = $_POST['txn_id']; 
    $payer_email = $_POST['payer_email']; 
    $payment_date = $_POST['payment_date']; 

    // <---- HERE you can do your INSERT to the database  
    $db_handle->insert("INSERT INTO buy_history(payment_method, item_name, item_quantity, payment_status, payment_amount, payment_currency, txn_id, payer_email, payment_date) VALUES ('paypal', '" . $item_name . "', " . $item_quantity . ", '" . $payment_status . "', '" . $payment_amount . "', '" . $payment_currency . "', '" . $txn_id . "', '" . $payer_email . "', '" . $payment_date . "')"); 


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

} 
?> 

Answer 1

あなたのカートで複数のアイテムを持っているので、あなたはIPNに複数のアイテムを受け取ります。

だから、あなたはそうのようにしなければならない。

$item_name1 = $_POST['item_name1']; 
$item_quantity1 = $_POST['quantity1']; 

// and so on