webové keše

header("Cache-Control: must-revalidate");
$offset = 60 * 60 * 24 * 3;
header("Expires: " . gmdate("D, d M Y H:i:s", time() + $offset) . " GMT");

    header("Expires: Mon, 26 Jul 1990 05:00:00 GMT");
    header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
    header("Cache-Control: no-store, no-cache, must-revalidate");
    header("Cache-Control: post-check=0, pre-check=0", false);
    header("Pragma: no-cache");

header("Expires: ".gmdate("D, d M Y H:i:s", time() + 3600)." GMT");
header("Pragma: cache");
header("Cache-Control: max-age=3600");

header("Expires: ".gmdate("D, d M Y H:i:s", time() + 3600)." GMT");
header("Pragma: cache");
header("Cache-Control: max-age=3600");

Cache-Control    no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection    Keep-Alive
Content-Type    text/html
Date    Sat, 30 Nov 2013 15:20:52 GMT
Expires    Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive    timeout=5, max=54
Pragma    no-cache
Server    Apache/2.4.4 (Win32) OpenSSL/1.0.1e PHP/5.5.1
Transfer-Encoding    chunked
X-Powered-By    PHP/5.5.1
Hlavičky požadavkuzobrazit zdroj
Accept    text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding    gzip, deflate
Accept-Language    cs,en-us;q=0.7,en;q=0.3
Cache-Control    max-age=0
Connection    keep-alive
Cookie    PHPSESSID=iah017k8bbn3v0kmvlokhf9vm3
Host    localhost
Referer    http://localhost/
User-Agent    Mozilla/5.0 (Windows NT 6.1; rv:25.0) Gecko/20100101 Firefox/25.0

$offset = 60 * 60 * 24 * 3;
header("Expires: " . gmdate("D, d M Y H:i:s", time() + $offset) . " GMT");