On 9/13/06, afan@xxxxxxxx <afan@xxxxxxxx> wrote:
Wouldn't this actually bring me back to empty form? > On 9/13/06, afan@xxxxxxxx <afan@xxxxxxxx> wrote: >> >> sorry, but didn't get this one. could you please elaborate it a little >> bi >> to me? >> >> thanks. >> >> >> >> > On 9/13/06, afan@xxxxxxxx <afan@xxxxxxxx> wrote: >> >> >> >> Hi, >> >> Could somebody explain to me what to do to skip this message I'm >> getting >> >> after I search for some products on my page, got the list of >> products, >> >> selected a detailed view of the product and click on the Back button >> of >> >> the browser to see again list of found products (result page): >> >> "The Page you are trying to view contains POSTDATA that has expired >> from >> >> cache. If you resend the data, any action the form carried out such >> as >> a >> >> search or online purchase) will be repeated. To resend the data, >> click >> >> OK. >> >> Otherwise, click Cancel." >> >> >> >> Thanks for any help. >> >> >> >> -afan >> >> >> >> -- >> >> PHP General Mailing List (http://www.php.net/) >> >> To unsubscribe, visit: http://www.php.net/unsub.php >> >> >> >> If you add a header redirect [header('Location:');] after your script >> > processes the POST data you can avoid this. >> > >> >> Sure.. > > Say you have form.php. This page will post to process.php. (Just an > example. Having form.php post to itself is fine too and how I always do > my > forms since on error I redisplay them with filled values) > > Inside process.php you might have something like > > <?php > if (strtolower($_SERVER['REQUEST_METHOD']) == 'post') { > //do processing here > if ( success ) { > header('Location: http://example.com/thanks.php'); > } else { > header('Location: http://example.com/form.php'); > } // if > } // if > > session_write_close(); // if you're using sessions > exit(); > ?> > > Now when your form posts to process, your script will either go back to > the > form.php on error, or thanks.php on success. Because process.php issues a > redirect, this tells the browser to ignore process.php in the history it > saves. If a user clicks the back button it will go to form.php because > process.php returned a 403 header and was "ignored" for lack of a better > word. > > Hope that helps! >
Yes, but I was leaving up to you to fill in the blanks for your implementation. An easy way to handle this is to stick the sanitized post values into the session and go wherever you need to.
