PayPal\Formatter\PPSOAPFormatter::toString PHP Метод

    public function toString($request, $options = array())
    {
        $customNamespace = $request->getBindingInfo('namespace') != null ? $request->getBindingInfo('namespace') : "";
        $soapEnvelope = '<soapenv:Envelope ' . self::$SOAP_NAMESPACE . " {$customNamespace} >";
        $soapHeader = '<soapenv:Header>';
        if ($request->getBindingInfo('securityHeader') != null) {
            $soapHeader .= $request->getBindingInfo('securityHeader');
        }
        $soapHeader .= '</soapenv:Header>';
        $soapBody = '<soapenv:Body>';
        $soapBody .= $request->getRequestObject()->toXMLString();
        $soapBody .= '</soapenv:Body>';
        return $soapEnvelope . $soapHeader . $soapBody . '</soapenv:Envelope>';
    }