[Resolved] preventing re-sending of $_POST data

babygodzilla

ok so i have a simple form that POSTs a variable. my problem is that when I refresh and that message comes up "This page cannot be reloaded without resending POST data bla bla bla" and i click OK and the POST variable is sent again. this'll screw my script. how do i stop this?

thanks!

nemonoman

Are you using a database? if so, I have a simple answer.

babygodzilla

no im not. its just a form

nemonoman

use a cookie:
when the form is sent, also send a cookie
with variable 'sent=0';

place a hidden variable 'sent' in the form with a random value

When the form is sent, check that the value of cookie 'sent'.

If it is 0, put the new random value in the cookie and process the form -- sent=12345

If it is 12345 ($COOKIE['sent']==$POST['sent']) don't process the form and display some friendly error page.

babygodzilla

hmmm i dunno if its worth it to go to such lengths as using cookies for such a simple script. is there a shorter way?

nemonoman

You're going to have to write something somewhere. Don't be a baby: if you want to solve the problem, be brave and solve it.

babygodzilla

hehe ok. just trying to find the best solution possible.