我試圖從用戶的 ebay 帳戶中獲取一些產品，但是當我運行我的代碼時，我只收到一個錯誤“您的應用程序遇到錯誤。此請求缺少必需的輸入標簽”或“?！?lt;?phpfunction print_d($array){    echo "<pre>\n";    print_r($array);    echo "</pre>\n";}$mytoken = "************mytoken************";$devId   = "************mydevId************";$appId   = "************myappId************";$certId  = "************mycertId************";$wsdl_url = 'http://developer.ebay.com/webservices/latest/ebaySvc.wsdl';$apiCall = "GetSellerList";$credentials = array('AppId' => $appId, 'DevID' => $devId, 'AuthCert' => $certId);$client = new SOAPClient($wsdl_url, array('trace' => 1, 'exceptions' => 0, 'location' => "https://api.ebay.com/wsapi?callname=$apiCall&appid=$appId&siteid=0&version=803&Routing=new"));$eBayAuth = array('eBayAuthToken' => new SoapVar($mytoken, XSD_STRING, NULL, NULL, NULL, 'urn:ebay:apis:eBLBaseComponents'),                    'Credentials' => new SoapVar ($credentials, SOAP_ENC_OBJECT, NULL, NULL, NULL, 'urn:ebay:apis:eBLBaseComponents'));  $header_body = new SoapVar($eBayAuth, SOAP_ENC_OBJECT);    $header = array(new SOAPHeader('urn:ebay:apis:eBLBaseComponents', 'RequesterCredentials', $header_body));                //set the API call parameters$params = array('UserID'=>'**sellerid**','DetailLevel'=>'ReturnAll','WarningLevel'=>'High','IncludeWatchCount'=>'true','Pagination'=>array('EntriesPerPage'=>'20','PageNumber'=>'1'),'Version' => '803', 'CreateTimeFrom'=>'2019-07-01T01:01:02.768Z', 'CreateTimeTo'=>'2019-08-22T01:01:02.768Z');  $request = $client->__soapCall($apiCall, array($params), NULL, $header);  //make the actual API callprint_d($request);?>