Re: [PHP4BETA] Browser BACK/Forward Button with Form

On Fri, Dec 31, 1999 at 08:46:55PM +0100, Tilli Weissenberger wrote: > On some forms I created the user gets the following error message, when > trying to use the BACK or FORWARD buttons on the browser: > > Warning: Page has Expired The page you requested was created using > information you submitted in a form. This page is no longer available. As a > security precaution, Internet Explorer does not automatically resubmit your > information for you. > > To resubmit your information and view this Web page, click the Refresh > button. > > How do I have to write forms in order to avoid this error message? Tell the user not to use back/forward buttons. I know it is kind of annoying, if you have to educate your users, but it is usually the only working method to ensure that the data on the client side and on the server side is in a consistent state (I presume you are using sessions). -- Regards, Sascha Schumann Consultant