How to install useragent in cURL

Like this:

$useragent="Your UserAgent string goes here";
$options = array(
    CURLOPT_USERAGENT => $useragent,
    CURLOPT_AUTOREFERER => true,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_COOKIEFILE => $cookie,
    CURLOPT_COOKIEJAR => $cookie,
    CURLOPT_SSL_VERIFYPEER => 0,
    CURLOPT_SSL_VERIFYHOST => 0
);