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Posted by Chris Kay on 04/19/05 07:42
unset($_POST['buttonNew']);
wont work?
CK
On Mon, Apr 18, 2005 at 08:25:04PM -0700, Richard Lynch wrote:
> On Fri, April 15, 2005 5:08 am, Mario de Frutos Dieguez said:
> > I have another little question hehe :D, i have a page with a form where
> > the user insert data and can click in a new,edit or delete button. I've
> > make that when a button is clicked the page refresh and in the head of
> > the page i have conditions like this: if ($_POSt["buttonNew"]!="") {
> > insert commands.. } , etc
> >
> > My question is, how can i unset $_POST["buttonNew"] or leave it empty
> > because when the user refresh the page make insert commans again because
> > the $_POST["buttonNew"] arent empty.
>
> The POST data is sent by the browser, so you can't really alter that...
>
> But you can bury an http://php.net/md5 or other random token in the FORM,
> and put that token in a table in your database, and then on the first
> POST, you mark that token as "used"
>
> On the second POST, a re-load, you can detect that the token was "used"
> and do whatever you want. Re-direct the user, ignore them completely,
> give them an error message, blow up their computer. Well, okay, you can
> do almost whatever you want.
>
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