suppress reposting in php

[OZmike]

created a self posting page in php, to allow users to bid on products which refreshes every 20 seconds, so members can see any counter bids, is there a way to suppress the resend POST message which will occur if the user places a bid and then the page refreshes again?

[mogenshoj]

You can put something like this in the top of the page or create a seperate page for bid inserts and the redirect the user back to the original page.

if (isset($_POST[something])) {
// insert into database or whatever

header("Location: the_same_page.php");
}

[OZmike]

thank you, sort of works but only after you place a bid, if however you just go into the page, and then the refresh runs, then I still get the error, must be my coding, will look into it further, thank you for the help

[lobo235]

The site visitor must be arriving to the page via a POST form. Are they clicking a form button that takes them there?

[OZmike]

yes - they fill out a spec form then post that form that produces the offering catalogue, the offer catalogue is a self posting php page, to get around it for the time being I have faked a post on the page when the user first goes into the page then all is working ok, if the fake post was not done then I get the message about re posting

[jatar_k]

all you need to do to break reposting is not have your "thank you for your input" or your coinfirmation page have the submit logic in it.

Break the chain and they can reload the final page as many times as they like

>> a self posting php page

these make for many problems of which this is one, don't do it

[OZmike]

Thank you for your help, got it working fine now thanks to your advise