$ch = curl_init(); $agent = 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36")'; curl_setopt($ch, CURLOPT_URL, 'http://sugang.pusan.ac.kr/sugang/login.aspx'); curl_setopt($ch, CURLOPT_USERAGENT, $agent); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 1); // return header curl_setopt($ch, CURLOPT_NOBODY, 1); // no body return. it will faster curl_setopt($ch, CURLOPT_TIMEOUT, 15); $response = curl_exec($ch); curl_close($ch); $data=explode("Date: ", $response); $data=explode(" GMT", $response[1]); $data=strtotime($response[1]) + 8 * 3600; $data=(int)$data; ?>