Robert Samuel White wrote:
> You might want to modify your coding. The way I prevent this problem
> from ever happening is this:
>
>
>
> 1. The user completes information on the form.
>
> 2. The form is validated by PHP.
>
> 3. If there are errors, then the form is reshown with their values
> populated.
>
> 4. Once all errors are corrected, I process the form and then use a
> Header("Location: ") to redirect the user to the same page (or
> another page).
>
>
>
> This has the advantage of allowing a user to click the back button
> and seeing their form with their values still intact.
>
>
>
> This prevents a method post page from being in the user's browser
> history.
Now one thing bothers me: how do you redirect in step 4 if you have shown
the form in step 3?
How do you avoid a "Cannot modify header information - headers already sent
by ..." error message?
Nicolas Verhaeghe
E-mail: nicolas@xxxxxxxxxxxxx
Phone: 602-490-8000
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