PayPal\PayPalAPI\GetBalanceReq::toXMLString PHP Method

    public function toXMLString()
    {
        $str = '';
        $str .= '<ns:GetBalanceReq>';
        if ($this->GetBalanceRequest != null) {
            $str .= '<ns:GetBalanceRequest>';
            $str .= $this->GetBalanceRequest->toXMLString();
            $str .= '</ns:GetBalanceRequest>';
        }
        $str .= '</ns:GetBalanceReq>';
        return $str;
    }