$_POST['txn_id'] 未设置为贝宝订阅

Question

我正在使用以下代码进行订阅。但是，我没有得到这笔交易的 TXN_ID .....请帮助。为了取消目的，需要 txn_id。

***Subscription HTML***
<form name="paypal" id="paypal" action="https://www.sandbox.paypal.com/cgi-bin/webscr">
<input type="hidden" name="cmd" value="_xclick-subscriptions">
<input type="hidden" name="business" value="XXXXXXXXX@gmail.com">
<input type="hidden" name="cmd" value="_xclick-subscriptions">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="a3" value="2.00">
<input type="hidden" name="p3" value="3">
<input type="hidden" name="t3" value="M">
<input type="hidden" name="return" value="subscription.php?sus=sus&cid=201"> 
<input type="hidden" name="cancel_return" value="subscription.php?can=can">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="rm" value="2">
<input type="hidden" name="item_name" value="Test Subscription">
<input type="hidden" name="item_number" value="Subscription">
<input type="hidden" value="Please go back to website ..." name="cbt">

我正在使用以下代码取消并退还金额 取消代码。

function change_subscription_status($tran_id,$amount ) {
$version        = urlencode('51.0');
$API_Password   = urlencode( '1111111111' );
$API_UserName   = urlencode( 'xxxxxxxxxxx_biz_api1.gmail.com' );
$transactionID  = urlencode( $tran_id );
$refundType     = urlencode('Partial');
$amount         = $amount;
$currencyID     = urlencode('USD');
$API_Signature  = urlencode( 'xxxxxxxxxxxxxxxxxxxxxxxxx' );
$nvpStr         = "&TRANSACTIONID=$transactionID&REFUNDTYPE=$refundType&AMT=$amount&CURRENCYCODE=$currencyID";
$api_request    = "METHOD=RefundTransaction&VERSION=$version&PWD=$API_Password&USER=$API_UserName&SIGNATURE=$API_Signature$nvpStr";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api-3t.sandbox.paypal.com/nvp');
curl_setopt($ch, CURLOPT_VERBOSE, 1);
// Turn off the server and peer verification (TrustManager Concept).
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
// Set the request as a POST FIELD for curl.
curl_setopt($ch, CURLOPT_POSTFIELDS, $api_request);
// Get response from the server.
$httpResponse = curl_exec($ch);
curl_close( $ch );
if(!$httpResponse) {
exit("$methodName_ failed: ".curl_error($ch).'('.curl_errno($ch).')');
}
// Extract the response details.
return $httpResponseAr = explode("&", $httpResponse);
}

Answer 1

当您设置协议时，它不会给您txn_id，因为从技术上讲，您没有得到任何信息。您需要设置一个 IPN 侦听器，以便当它为您收费时，您可以从中获取txn_id。然后您就可以进行退款了。

Answer 2

对于任何可能遇到此问题的人，定期付款不涉及交易 ID。 Paypal recurring payment not retrieving Transaction ID