Is there a way to disable browser cache for a single page?

Question

For a small intranet site, I have a dynamic (includes AJAX) page that is being cached incorrectly by Firefox. Is there a way to disable browser caching for a single page?

Here's the setup I'm using:

• Apache under XAMPP, running on a Windows server
• PHP

Clarification

The content that I'm primarily concerned about is page text and the default options in some <select>s. So I can't just add random numbers to the end of some image URLs, for example.

Update:

I followed the suggestions I've gotten so far:

• I'm sending nocache headers (see below)

• I'm including a timestamp URL parameter and redirecting to a new one if the page is reloaded after 2 seconds, like this:

  $timestamp = $_GET['timestamp'];
  if ((time()-$timestamp) > 2) {
      header('Location:/intranet/admin/manage_skus.php?timestamp='.time());
  }
  

Now Firebug shows that the headers specify no cache, but the problem persists. Here are the response headers for the page:

Date    Fri, 25 Sep 2009 20:41:43 GMT
Server  Apache/2.2.11 (Win32) DAV/2 mod_ssl/2.2.11 OpenSSL/0.9.8i mod_autoindex_color PHP/5.2.8
X-Powered-By    PHP/5.2.8
Expires Mon, 20 Dec 1998 01:00:00 GMT
Last-Modified   Fri, 25 Sep 2009 20:41:43 GMT
Cache-Control   no-cache, must-revalidate
Pragma  no-cache
Keep-Alive  timeout=5, max=100
Connection  Keep-Alive
Transfer-Encoding   chunked
Content-Type    text/html

Answer 1

Add current timestamp as parameter of url, e.g.

http://server.com/index.php?timestamp=125656789

Answer 2

I think this tells you what you want:

http://www.thesitewizard.com/archive/phptutorial2.shtml

Look for "Preventing the Browser From Caching"

header( "Expires: Mon, 20 Dec 1998 01:00:00 GMT" );
header( "Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT" );
header( "Cache-Control: no-cache, must-revalidate" );
header( "Pragma: no-cache" );

Answer 3

You should send the following header:

Cache-control: no-cache

in the HTTP response.