public function getXMLContent()
    {
        if ($this->xmlContent === null) {
            try {
                if (($content = $this->content) === '') {
                    return $this->xmlContent = false;
                }

                $errors = libxml_use_internal_errors(true);
                $this->xmlContent = new SimpleXMLElement($content);
                libxml_use_internal_errors($errors);
            } catch (Exception $exception) {
                return $this->xmlContent = false;
            }
        }

        return $this->xmlContent;
    }