So the answer is, there is no way to destroy the values. Question then, what is unset() used for as it doesn't seem to do anything? With a language as good as PHP I though there would be some way to do this. I have got a workaround, but that's exactly what it is - a work around. I am also still confused as to why giving them a null value doesn't work.
Thanks to all. > -----Original Message----- > From: Satyam [mailto:[EMAIL PROTECTED] > Sent: January 12, 2007 8:21 AM > To: Beauford; PHP > Subject: Re: [PHP] Forms and destroying values > > This issue comes over and over again. The trick, as I > learned from this list, is to send a redirect to the browser > to a confirmation page, so the browser remembers the page > redirected to and completely ignores the page that made the > redirection so that neither a refresh nor going back to it > can repeat the operation. > > So, if the database update has been succesful, use the > header() function to send a 'location' header along with > enough arguments in the URL to display a significant > confirmation message but make sure that it is different from > the URL that makes the database update. It will be this > address, not the > post that made the database update, that the browser will remember. > > Satyam > > > > ----- Original Message ----- > From: "Beauford" <[EMAIL PROTECTED]> > To: "PHP" <php-general@lists.php.net> > Sent: Friday, January 12, 2007 9:27 AM > Subject: [PHP] Forms and destroying values > > > > Hi, > > > > How do I stop contents of a form from being readded to the > database if the > > user hits the refresh button on their browser. > > > > I have tried to unset/destroy the variables in several > different ways, but > > it still does it. > > > > After the info is written I unset the variables by using > unset($var1, > > $var2, > > $etc). I have also tried unset($_POST['var1'], $_POST['var2'], > > $_POST['etc']). I even got deperate and tried $var = ""; or > $_POST['var'] > > = > > ""; > > > > What do I need to do to get rid of these values??? > Obviously I am missing > > something. > > > > Any help is appreciated. > > > > Thanks > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
