Reloading php-script with form-results

[deleted]

Hi all,
There are problably many forums handling the subject of my problem, but ... still, I haven't been able to find the proper solution.
So, here goes:

When a user fills information in the form I've designed in form1.php and clicks the submit button, all information will be processed in form2.php and added in a MySQL database. I'm very happy with this.
What I'm not so pleased about is the fact that when a user, in form2.php, after the information from form1.php has been processed, presses the Reload button on his browser (still with me??), the information is processed again and either a error is shown ("allready exists" which I implemented) or the information is added to the database again!! I don't want that.
I've studied several 'solutions' to the problem, but haven't found suitable.
Can anyone help me with a solution to either avoid the problem, or recognize that a user has reloaded and return a more suitable error??????

Thanks very much in advance for all help!

Lara

Anon

I usually make a form processing script do just that. Process the form and redirect the user. Do not have it output anything to the browser.

Ex.

<-- form1.php -->
Display your form to the user.

<-- form2.php -->
Add the form data to the database
Redirect user to form3.php

<-- form3.php -->
Display a success message to the user

If they press reload from form3.php, nothing will happen as far as your database update goes.

Hopefully this helps.

offnordberg

There may be a more eloquent way, but what about just adding a little

if(!$sumbit) {
form
} else {
process form
redirect to form2.php
}

logic to the layout. That way, form2 only contains post-submit HTML and they would only resumbit if they first went back, then reloaded. Again, this doesn't make it impossible to resubmit, but it does make it much harder.

You can also try setting a variable at the end of the form2 code like "$processed=yes" and some logic at the top that checks for the value of $processed every time the page is loaded (or reloaded).

Hope this helps,
Erik