$loginUrl = 'https://logins.daum.net/Mail-bin/login.cgi?dummy=1238466344458'; 

$login_data = 'enpw=비밀번호&id=아이디&pw=비밀번호&url=http://www.daum.net&webmsg=-1'; 

$cookie_nm = "./cookie.txt"; 

$ch = curl_init(); 

curl_setopt ($ch, CURLOPT_URL,$loginUrl); //접속할 URL 주소 

curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 

curl_setopt ($ch, CURLOPT_SSLVERSION,1); 

curl_setopt ($ch, CURLOPT_HEADER, 1); 

curl_setopt ($ch, CURLOPT_POST, 1); 

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_nm); 

curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_nm); 

curl_setopt($ch, CURLOPT_POSTFIELDS, $login_data); 

curl_setopt ($ch, CURLOPT_TIMEOUT, 30); 

curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 

$result = curl_exec ($ch); 

curl_setopt ($ch, CURLOPT_URL,"http://www.daum.net/"); //접속할 URL 주소 

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_nm); 

curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_nm); 

$result = curl_exec ($ch); 

curl_close ($ch); 

echo $result;