Re: echo SESSION var doesn't work if unset after echo

On Tue, 2008-12-09 at 19:11 +0000, ceo@l-i-e.com wrote: > Fire up Live HTTP Headers in Firefox. > > > > My theory is that the browser is RE-requesting the data because of the private, > must-revalidate. > > > > So it goes like this: > > > > Browser -> GET -> Ecomm: fooie ; unset Ecomm > > Browser -> GET -> Ecomm: [not set] > > > > If you are using Ajax and JS and whatnot, the probability of this being the culprit increases. > :-) > > > If the php is executed because of a GET request, i.e. from a link, then the page could well be requested twice. I've seen this happen before, where I was adding entries to a database when a user navigated to a certain page from a link. The way I solved it was to add a timestamp and check to see if an exact duplicate entry had been made within the last n seconds before adding it. You could add a time value to the session and check against this before unsetting the session? Ash www.ashleysheridan.co.uk