get_curl_version example

$headers = array();
            }
            if (!$force_fsockopen && function_exists('curl_exec'))
            {
                $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
                $fp = curl_init();
                $headers2 = array();
                foreach ($headers as $key => $value)
                {
                    $headers2[] = "$key: $value";
                }
                if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
                {
                    curl_setopt($fp, CURLOPT_ENCODING, '');
                }
                curl_setopt($fp, CURLOPT_URL, $url);
                curl_setopt($fp, CURLOPT_HEADER, 1);
                curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
                curl_setopt($fp, CURLOPT_FAILONERROR, 1);
                curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
                curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
                curl_setopt($fp, CURLOPT_REFERER, SimplePie_Misc::url_remove_credentials($url));
                curl_setopt($fp, CURLOPT_USERAGENT, $useragent);