Php 如何使用自适应paypal API退还部分金额

我只是浏览了很多和这个话题相关的帖子，但并没有找到解决办法。我只想把我的部分货款退还给买家。比如，若买家支付了50美元的服务费，现在想要退款，那个么买家将获得2%的扣除额

下面的代码工作正常，全额退款，但我想要部分金额

这是我的密码：

/* Refund API*/
$refundRequest = new RefundRequest(new RequestEnvelope("en_US"));
//The receiver's email address, where n is between 0 and 5 for a maximum of 6 receivers
if(isset($_POST['receiverEmail'])) {
$receiver = array();
for($i=0; $i<count($_POST['receiverEmail']); $i++) {
    $receiver[$i] = new Receiver();
    $receiver[$i]->email = $_POST['receiverEmail'][$i];
    $receiver[$i]->amount = $_POST['receiverAmount'][$i];

    $receiver[$i]->primary = $_POST['primaryReceiver'][$i];
    if($_POST['invoiceId'][$i] != "") {
        $receiver[$i]->invoiceId = $_POST['invoiceId'][$i];
    }
    if($_POST['paymentType'][$i] != "" && $_POST['paymentType'][$i] != DEFAULT_SELECT) {
        $receiver[$i]->paymentType = $_POST['paymentType'][$i];
    }
    if($_POST['paymentSubType'][$i] != "") {
        $receiver[$i]->paymentSubType = $_POST['paymentSubType'][$i];
    }
    if($_POST['phoneCountry'][$i] != "" && $_POST['phoneNumber'][$i]) {
        $receiver[$i]->phone = new PhoneNumberType($_POST['phoneCountry'][$i], $_POST['phoneNumber'][$i]);
        if($_POST['phoneExtn'][$i] != "") {
            $receiver[$i]->phone->extension = $_POST['phoneExtn'][$i];
        }
    }
}
   $receiverList = new ReceiverList($receiver);
}
if($_POST['currencyCode'] != "") {
   $refundRequest->currencyCode = $_POST["currencyCode"];
}

if($_POST['payKey'] != "") {
   $refundRequest->payKey = $_POST["payKey"];
}

if($_POST['transactionId'] != "") {
   $refundRequest->transactionId = $_POST["transactionId"];
}

if($_POST['trackingId'] != "") {
   $refundRequest->trackingId = $_POST["trackingId"];
}

//Creating service wrapper object
$service = new AdaptivePaymentsService(Configuration::getAcctAndConfig());
try {
  /* wrap API method calls on the service object with a try catch */
  $response = $service->Refund($refundRequest);
} catch(Exception $ex) {
   require_once 'Common/Error.php';
   exit;
}

$ack = strtoupper($response->responseEnvelope->ack);
if($ack != "SUCCESS"){
   echo 'error:';
} else { 
   $status = $response->refundInfoList->refundInfo[0]->refundStatus;
   print_r($response);
}

/*退款API*/
$RETURNREQUEST=新的RETURNREQUEST（新请求信封（“en_US”））；
//收件人的电子邮件地址，其中n在0和5之间，最多6个收件人
如果（isset（$_POST['receiverEmail']））{
$receiver=array（）；
对于（$i=0；$iemail=$_POST['receiverEmail'][$i]；
$receiver[$i]->amount=$_POST['receiver amount'][$i]；
$receiver[$i]->primary=$\u POST['primaryceiver'][$i]；
如果（$_POST['invoiceId'][$i]！=“”）{
$receiver[$i]->invoiceId=$\u POST['invoiceId'][$i]；
}
如果（$\u POST['paymentType'][$i]！=“”&&&$\u POST['paymentType'][$i]！=默认值\u选择）{
$receiver[$i]->paymentType=$\u POST['paymentType'][$i]；
}
如果（$\u POST['paymentSubType'][$i]！=“”）{
$receiver[$i]->paymentSubType=$\u POST['paymentSubType'][$i]；
}
如果（$\u POST['phoneCountry'][$i]！=“”&&&$\u POST['phoneNumber'][$i]）{
$receiver[$i]->phone=新电话号码类型（$\u POST['phoneCountry'][$i]，$\u POST['phoneNumber'][$i]）；
如果（$\u POST['phoneExtn'][$i]！=“”）{
$receiver[$i]->phone->extension=$\u POST['phoneExtn'][$i]；
}
}
}
$receiverList=新的receiverList（$receiver）；
}
如果（$_POST['currencyCode']！=“”）{
$RETURNEQUEST->currencyCode=$\u POST[“currencyCode”]；
}
如果（$_POST['payKey']！=“”）{
$RETURNREQUEST->payKey=$\u POST[“payKey”]；
}
如果（$\u POST['transactionId']！=“”）{
$RETURNRequest->transactionId=$\u POST[“transactionId”]；
}
如果（$\u POST['trackingId']！=“”）{
$RETURNREQUEST->trackingId=$\u POST[“trackingId”]；
}
//创建服务包装器对象
$service=new AdaptivePaymentsService（配置：：getAcctAndConfig（））；
试一试{
/*使用try-catch包装服务对象上的API方法调用*/
$response=$service->return（$returnrequest）；
}捕获（例外$ex）{
需要_once“Common/Error.php”；
出口
}
$ack=strtoupper（$response->responseenevelope->ack）；
如果（$ack！=“成功”）{
回显“错误：”；
}否则{
$status=$response->refundInfo列表->refundInfo[0]->refundStatus；
打印（回复）；
}

有人能告诉我这个代码出了什么问题吗

---

谢谢

好的，我自己刚得到一个解决方案：

以下是经过编辑的代码，只需在请求中添加一个接收器阵列：

$refundRequest->receiverList = $receiverList;

你就完了

希望这能帮助别人