Prefix SOAP parameter tag name with namespace for EML payments destination ID

soapclient.php

    /**
     * EML payments require destination ID to be included inside their request
     * Example of how the soap look like for the destination ID
     *  <eml1:DestinationAccountId i:type="eml2:ExternalAccountIdentifier">
     *           <eml2:ExternalAccountId>ABCD1234</eml2:ExternalAccountId>
     *       </eml1:DestinationAccountId>
     *  In order to do this. we need to specify the soap evnalop like this
     * <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tem="http://tempuri.org/" xmlns:eml="http://schemas.datacontract.org/2004/07/EML.Services.Base" xmlns:eml1="http://schemas.datacontract.org/2004/07/EML.Services.External.Shared.DTO" xmlns:eml2="http://schemas.datacontract.org/2004/07/EML.DTO.Identifiers" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
     * 
     * Pay attention to xmlns:i which is what require in order to do i:type="eml2:ExternalAccountIdentifier"
     * 
     * Working example in XML:
     * <?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tem="http://tempuri.org/"   xmlns:eml="http://schemas.datacontract.org/2004/07/EML.Services.Base" xmlns:eml1="http://schemas.datacontract.org/2004/07/EML.Services.External.Shared.DTO" xmlns:eml2="http://schemas.datacontract.org/2004/07/EML.DTO.Identifiers" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
    *        <soapenv:Header/>
    *        <soapenv:Body>
    *           <tem:Transfer>
    *              <!--Optional:-->
    *              <tem:request>
    *                 <!--Optional:-->
    *                 <eml:SecurityRequest>
    *                    <!--Optional:-->
    *                    <eml:Password>Username</eml:Password>
    *                    <!--Optional:-->
    *                    <eml:Username>Password</eml:Username>
    *                 </eml:SecurityRequest>
    *                 <!--Optional:-->
    *                 <eml1:Amount>75</eml1:Amount>
    *                 <!--Optional:-->
    *                 <eml1:DestinationAccountId i:type="eml2:ExternalAccountIdentifier">
    *                     <eml2:ExternalAccountId>'.$data['DestinationAccountId'].'</eml2:ExternalAccountId>
    *                 </eml1:DestinationAccountId>
    *                 <eml1:DestinationReference>Transfer to '.$data['DestinationAccountId'].'</eml1:DestinationReference>
    *                 <!--Optional:-->
    *                 <eml1:SourceAccountId>
    *                    <!--Optional:-->
    *                    <eml2:ExternalAccountId>'.$data['ExternalAccountId'].'</eml2:ExternalAccountId>
    *                 </eml1:SourceAccountId>
    *                 <eml1:SourceReference>Transfer from '.$data['ExternalAccountId'].'</eml1:SourceReference>
    *              </tem:request>
    *           </tem:Transfer>
    *        </soapenv:Body>
    *     </soapenv:Envelope>
    */
    public function Transfer($data)
    {
        
        $sec = new SecurityRequest();
        $sec->Username = $data['username'];
        $sec->Password = $data['password'];
        $SourceAccountId = new SourceAccountId();
        $SourceAccountId->ExternalAccountId = $data['ExternalAccountId'];

        $objParam = new \stdClass();
        $objParam->request = new \stdClass();
        $objParam->request->SecurityRequest = $sec;
        $objParam->request->Amount = $data['Amount'];
        $array = [];
        /**
         * Haven't found any good document about how to create the tag like the sample XML.  
         * Major issue is the externalaccountid got two and PHP Soap client keeps picking up the wrong one
         */
        $string = '<ns3:ExternalAccountId>'.$data['DestinationAccountId'].'</ns3:ExternalAccountId>';
        $array[] = new SoapVar(
            $string,
            XSD_ANYXML);
   
        $objParam->request->DestinationAccountId =new SoapVar(
            $array, 
            SOAP_ENC_OBJECT, 
            "ns3:ExternalAccountIdentifier",
            null, 
            "DestinationAccountId",
            "http://www.w3.org/2001/XMLSchema-instance");
            
        if (isset($data['DestinationReference']) && !empty($data['DestinationReference'])) {
            $objParam->request->DestinationReference = $data['DestinationReference'];
        } else {
            $objParam->request->DestinationReference = "";
        }
        
        $objParam->request->SourceAccountId = $SourceAccountId;
        if (isset($data['SourceReference']) && !empty($data['SourceReference'])) {
            $objParam->request->SourceReference = $data['SourceReference'];
        } else {
            $objParam->request->SourceReference = "";
        }
        /**
         * response
         * stdClass Object ( [TransferResult] => stdClass Object ( [ErrorCode] => [ExtendedErrorInformation] => [Success] => 1 [TransactionId] => 12345678901 ) )
         */
        try
        {
            $response = $this->soapClient->Transfer($objParam);
            return [
                'success' => $response->TransferResult->Success,
                'data' => $response->TransferResult->TransactionId
            ];
            
        }catch(Exception $e)
        {
            return [
                'success' => false,
                'error' => $e
            ];
        }
        return $this->checkIsSoapFault($this->soapClient);
    }