At the moment I have a PHP script which accesses a database, to
get the data to return a picture. So the follwing url is actually a
picture of type image/jpeg:


        So I can use:

        <img src="getdata.php?id=6">

        Thats great and it works fine, but I feel that it does not cache
the picture in the web browser? I don't know how the cache works but my
friend says it asks the server for the data the file was generated and
the size, so I suppose with this is dosent?




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