setUserAgent('some agent'); $curl->setTimeout(60); foreach ($curl->getUserSetOptions() as $option => $value) { echo 'user set option ' . $option . ':' . "\n"; $curl->displayCurlOptionValue($option, $value); echo "\n"; } // user set option 10018: // CURLOPT_USERAGENT: "some agent" // // user set option 13: // CURLOPT_TIMEOUT: 60