PHP - Webservice Response In Xml

A HTTP request is made to the server, Slim creates a Request and Response object, content in the Request is sent to another server using cURL via Guzzle, Guzzle returns its own Response,  and content from Guzzle's response must be returned by the original Slim response.

Would you recommend white-listing or black-listing response headers, and which specific headers?

Similarly, would you recommend white-listing or black-listing the request headers sent via cURL, and which specific headers?

Thanks

<?php
use Psr\Http\Message\ResponseInterface as Response;
use GuzzleHttp\Psr7\Response as CurlResponse;

class ApiResponder
{
    public function delete(Response $httpResponse, CurlResponse $curlResponse) {
        return $this->proxy($httpResponse, $curlResponse);
    }
    //other public methods...

    private function proxy(Response $httpResponse, CurlResponse $curlResponse) {
        foreach($this->getResponseHeaders($curlResponse) as $name=>$value) {
            $httpResponse=$httpResponse->withHeader($name, $value);
        }
        return $httpResponse->withBody($curlResponse->getBody())->withStatus($curlResponse->getStatusCode());
    }

    private function getResponseHeaders(Response $httpResponse):array
    {
        //Blacklist headers which should be returned to original client.  TBD whether I should whitelist headers instead.
        $blacklist=['Date'=>null, 'Server'=>null, 'X-Powered-By'=>null, 'Access-Control-Allow-Origin'=>null, 'Access-Control-Allow-Methods'=>null, 'Access-Control-Allow-Headers'=>null, 'Set-Cookie'=>null];
        return array_diff_key($curlResponse->getHeaders(), $blacklist);
    }

    /**
    * This method doesn't really exist in this class, but is just included to show which headers I am forwarding in the cURL request.
    */
    private function getRequestHeaders($clientRequest):array
    {
        $whitelist=['connection'=>null,'accept'=>null,'accept-encoding'=>null,'accept-language'=>null,'content-type'=>null,'content-length'=>null];
        return array_intersect_key($clientRequest->getHeaders(), $whitelist);
    }
}

in a B2B scenario
I need  to call a soap webservice (the client has already added my ip to the white list) this is the endpoint. 

http://myserver:81/star_enu/start.swe?SWEExtSource=WebService&SWEExtCmd=Execute&UserName=user&Password=password

Allows the validation of a client by card number

It is returned if the card is active (if the order is placed by the method ClientByNumCard - <Activ_Card>Y</ Activ_Card >)

                       It is returned if the client is active ( <Activ_Card >Y</Activ_Card >)

                      In case of success, _ID data is returned

XML order example:

<?xml version="1.0" encoding="utf-8"?>

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://platf.com/ClientUI">

  <soap:Body>

    <tns:ClientByNumCard_Input>

      <tns:N_Card>123456789</tns:N_Card>

    </tns:ClientNumCard_Input>

  </soap:Body>

</soap:Envelope>

Response Envelope

<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

  <SOAP-ENV:Body>

    <ns: ClientByNumCard _Output xmlns:ns="http://plaf.com/ClientUI">

      <ns:Error_spcCode>0</ns:Error_spcCode>

      <ns:Error_spcMessage>0</ns:Error_spcMessage>

      <ListIo xmlns="http://www.platf.com/xml/xxx%20yyyy%20%20G%20IO">

        <CartaoClienteGeral>

          <Activ_Card>Y</Activ_Card>

          <ListOfClients>

            <ClientMember>

              <ID>1-AVG-22020</ID>

              <N_Client>23654</N_Client>

              <N_ClientS>0</N_ClientS>

              <Activ_Client>Y</Activ_Client>

              <ID>130562</ID>

            </ ClientMember >

          </ListOfClients>

        </CartaoClienteGeral>

      </ListIo>

    </ns:ClientByNumCard_Output>

  </SOAP-ENV:Body>

</SOAP-ENV:Envelope>

any ideas how to make a simple class in php?

Any charitable soul who can help me?

I've been having this problem for days and I can't solve it. I would be forever grateful if anyone could help

  I already checked in phpinfo ()and the class soap client is enabled

the code below on localhost works perfectly, but in production, on the server side, nothing ... only  HTTP error 500.

the request that  I 'm making is on another domain with port 81 (this domain has my ip on the withlisted) and on my domain I use security certificate. Is it around?

anyway wsdl is he

$client = new SoapClient('https://dekrainspecoes.pt/acp/PROD_CustomUI_ACP_Member_Validation_WS.WSDL');
$result = $client->QueryByNumCartao(array('N_Cartao' => "705684011673122085"));

if (!empty($result->QueryByNumCartao_Output->Cartao_Ativo)) {

    echo 'The userId : '.$result->QueryByNumCartao_Output ->Pessoa_ID;

}

$JSON = json_encode($result);

in a B2B scenario
I need  to call a soap webservice (the client has already added my ip to the white list) this is the endpoint. 

http://myserver:81/star_enu/start.swe?SWEExtSource=WebService&SWEExtCmd=Execute&UserName=user&Password=password

Allows the validation of a client by card number

It is returned if the card is active (if the order is placed by the method ClientByNumCard - <Activ_Card>Y</ Activ_Card >)

                       It is returned if the client is active ( <Activ_Card >Y</Activ_Card >)

                      In case of success, _ID data is returned

XML order example:

<?xml version="1.0" encoding="utf-8"?>

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://platf.com/ClientUI">

  <soap:Body>

    <tns:ClientByNumCard_Input>

      <tns:N_Card>123456789</tns:N_Card>

    </tns:ClientNumCard_Input>

  </soap:Body>

</soap:Envelope>

Response Envelope

<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

  <SOAP-ENV:Body>

    <ns: ClientByNumCard _Output xmlns:ns="http://plaf.com/ClientUI">

      <ns:Error_spcCode>0</ns:Error_spcCode>

      <ns:Error_spcMessage>0</ns:Error_spcMessage>

      <ListIo xmlns="http://www.platf.com/xml/xxx%20yyyy%20%20G%20IO">

        <CartaoClienteGeral>

          <Activ_Card>Y</Activ_Card>

          <ListOfClients>

            <ClientMember>

              <ID>1-AVG-22020</ID>

              <N_Client>23654</N_Client>

              <N_ClientS>0</N_ClientS>

              <Activ_Client>Y</Activ_Client>

              <ID>130562</ID>

            </ ClientMember >

          </ListOfClients>

        </CartaoClienteGeral>

      </ListIo>

    </ns:ClientByNumCard_Output>

  </SOAP-ENV:Body>

</SOAP-ENV:Envelope>

any ideas how to make a simple class in php?