I had a similar problem and I just put this in front of my php so everytime
my scripts are called they always tell the browser and any proxy servers not
to cache anything from me.

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

----- Original Message -----
From: "Donahue Ben" <[EMAIL PROTECTED]>
Sent: Wednesday, October 09, 2002 1:00 PM
Subject: [PHP] Image problem

> I upload an image.  Once I upload this image using the
> is_uploaded_file function, then writing this image
> file using the copy function.  Everything seems to
> work fine.  When i try to update (that is uploading a
> new file and saving it with the same name as the first
> file created) it shows the first image instead of the
> second image.  So what I did was closed my browser,
> then reopened it, then everything was ok.  So I figure
> that I have a cache problem.  I then tried using the
> clearstatcache() function right after I update this
> image file.  But it did not seem to work.  So am I
> going to have to close and reopen my browser to see
> these changes take place or is there something else I
> can do?
> Ben
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