I m new user for this forum, I am very impress by the way people get responses to their queries. so, Please help me too. I really don't know anything about that cache term.(even i had searched in google too, but i didn't help me the way I want). that is ok that "it Get and/or set the current cache limiter". it is simple enough to understand. My problem is that i m confused with HTTP cache control, what exactly it do where it can be used, etc. is there any one who can help me to let me understand full use of "session_cache_limiter", with examples . I would really be thank full to him. please friends. please take interest on my question. i m waiting for your reply.... thank you.