How to clear the cache memory?

[Prakash Gnana]

I don't know how to clear the cache memory and the use of the same.. Please help me to know about the cache memory and how to clear it..
Thank you,
Prakash

[dlite922]

Are you talking about browser (http header) cacheing?

[Prakash Gnana]

yes sir...

[mfaisalwarraich]

You need to tell browsers not to cache your data with the following http headers:

 header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");    // Date in the past 
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");  
                                                     // always modified 
header("Cache-Control: no-store, no-cache, must-revalidate");  // HTTP/1.1 
header("Cache-Control: post-check=0, pre-check=0", false); 
header("Pragma: no-cache");                          // HTTP/1.0