posting form

[FrEaKmAn]

Hi,

I have one simple question. So if we have simple form with post method, something like

PHP Code:

<?php
if($_POST[submit]){
   //execute code
}
?>
<form action="index.php" method="post">
<input name="test">
<input name="submit" value="submit" type="submit">
</form>

and when we submit it and try to refresh, at least as I know, we get warning about submitting data again and if we confirm, it will resubmit. Now how can I remove this? How to protect it from resubmitting...

[Buzz]

Use a second php page for form submissions. Basically action="submit.php"

At the end of submit.php redirect back to the form page with a message for confirmation or error.

Essentially the user never sees submit.php it just processes the form then throws them back to the form. Since there's no form processing on the form, you wont' get the warning about resubmitting.

[FrEaKmAn]

it's possible, but I hate that in this case I would need to create new page for each form. But what would back button do in this case?

[Buzz]

You can create 1 page and use different post variable for each form. Not 100% certain about back button behavior. Theoretically it would simply show the form before it was submitted.

Another option is to simply clear all post variables after processing the form.

[FrEaKmAn]

how would I clean them? I can't just do:

PHP Code:

$_POST[submit]=0; 


[Buzz]

PHP Code:

$_POST['submit'] ="";