$ch = curl_init();
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); // Allow redirection
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookies.txt");
curl_setopt($ch, CURLOPT_URL,"http://siteadi.com/login.php");


curl_setopt($ch, CURLOPT_REFERER, "http://siteadi.com");
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36");
curl_exec ($ch);
curl_close($ch);