PayPal\PayPalAPI\TransactionSearchReq::toXMLString PHP Method

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