browser cache

[psaurabh]

Hi
I have one more problem , can anyone please help
I have designed a poll system with
poll action and display on same page. What i am doing is creating an image for the poll system and saving it to a filename ,
say
poll.png
in the html page , i display that image with src pointing to the actual directory where i saved the image file
now my problem is that , when after completion of action of recreating the picture , when i am displaying back the page from where the user started , the image is shown from the browser cache.
I am also adding
<script>
window.location.replace("<?echo($hurl);?>?<?echo(time()); ?>");
</script>

Thanks

[edwardsbc]

Think about adding the HTML META tag to your page that prevents (at least it requests) the browser from caching. I'm not certain of the syntax, but I'm sure this has been answered before on this forum. Try a search.

[psaurabh]

Thanks , i was able to find the post, now i am going to try that.

[Anon]

Using Meta-tags to supress caching isn't the best, becasue some browsers ignore meta-tags. Your best off to do it the header. Check this page out for all of your caching needs:

http://www.web-caching.com/

brad

[psaurabh]

hi thanks for the advice , please tell me one more thing , the syntax of browser caching .
Header("Cache-Control: no-cache , no-cache=pole.png");
this image pole.png i don't want to be cached what would be the syntax
thanks in advance