PHP SOAP client for .NET SOAP server

SoapClient.php

<?php

class SoapClient extends \SoapClient {

    function __doRequest($request, $location, $action, $version, $one_way = null) {

        $headers = array(
            'Method: POST',
            'Connection: Close',
            'User-Agent: PHP Soap Client',
            'Content-Type: text/xml',
            'SOAPAction: "' . $action . '"',
        );

        $ch = curl_init($location);
        curl_setopt_array($ch, array(
            CURLOPT_VERBOSE => false,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => $request,
            CURLOPT_HEADER => false,
            CURLOPT_HTTPHEADER => $headers
        ));

        $response = curl_exec($ch);

        return $response;
    }

}