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Re: Question on refresh

Posted by ZeldorBlat on 08/21/07 14:29

On Aug 21, 10:17 am, Rik <luiheidsgoe...@hotmail.com> wrote:
> On Tue, 21 Aug 2007 16:11:35 +0200, Shelly
>
> <sheldonlg.n...@asap-consult.com> wrote:
> > Here is a problem I have come across a few times and wonder if there is a
> > simple solution.
>
> > On my form I have a submit button called, say, addEntry. I do a test
> > for it
> > as
>
> > if (isset($_POST[addEntry'])) { code to insert stuff into the database }
>
> > The problem is that after clicking the button, and the code returns it to
> > the same screen, if the user clicks the refresh button on the browser it
> > will add another entry. Is there a simple way to unset an html field
> > test?
>
> One of the most common ways to achieve this is to do the thing on a post,
> without any output (unless possibly when there are errors), and then do a
> header redirect to a page (the same or another, whichever is more
> appropriate). POST values will be lost on a redirect, so this snippet will
> not 're-enter' the information:
>
> <?php
> if(isset($_POST['submit'])){
> //do your thing here
> header('Location: http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
> exit;}
>
> //displaying of page here
> ?>
> --
> Rik Wasmus

It's also worth noting that this question has been asked so many times
that it shouldn't be too difficult to find some resources on it.

 

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