how to clear the server-cache page

[shane07]

Hi

I have problem with the cached page in my local server. Because of the cached page I cannot view the changes I had made. The server caches even the output of the php scripts. I can view the changes only when a query string is appended to the URL. Because of this my clients could not view the actual pages. I cannot say 'Append a query string to the URL'. Is there any methods in PHP to overcome this problem?

Waiting for the reply.

 

Thank you.

[trq]

Your pages are likely being cached by the browser, not the server. You can set some headers that may help...

 

<?php

header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 01 Jan 2000 01:00:00 GMT");

?>

[shane07]

Your pages are likely being cached by the browser, not the server. You can set some headers that may help...

 

<?php

header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 01 Jan 2000 01:00:00 GMT");

?>

I think it is working now.

Thank you

I have also problem with css and image. The new css and image never loads unless the server skips caching. Is it also possible with PHP ?

[trq]

As I said, its likely your browser caching the pages. Unless the filenames change, your browser will use the local copy from its cache.

[shane07]

Actually, it is not working. Even now the browser outputs the old page without a query string. Regarding the images and css, I tried more than I can to clear the browser-cache but never loads the new page. The browser loads the new page at around 01.00 am local time when the server do not render the cache page.

[haku]

control + F5 refreshes the page from the server (no cache).

[shane07]

My site is related to an FM site which displays the current on-air program. I said 'I think it is working now' because at that time the on-air program has not been changed. After a while when the on-air program changed I tried the site again with the header information you gave but doesn't display the new page. The new page is displayed only when query string is passed. I even tried clearing the browse cache but the new page doesn't come up. An of course, I have tried control + f5 too.

 

With the other sites, I don't have to do Ctrl+f5 or appending query strings. only with my page which doesn't use sessions. I have no problem with the pages which contain sessions.

[shane07]

I found a new thing here.

My site is showing up the new contents using the header information as described above when the url doesn't include www.

eg. http://domain-name.com

But using http://www.domain-name.com shows up the old content without a query string.

[pratikc]

Your pages are likely being cached by the browser, not the server. You can set some headers that may help...

 

<?php

header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 01 Jan 2000 01:00:00 GMT");

?>

Hi Tried using this but the cache is not getting cleared . is there any specific location in code that we need to write this ?