using unset() when page is refreshed

[Damien_Buttler]

Hi all, I have a problem trying to use the unset() function. I have written a page with forms that calls submits to itself and will perform a function if a value is set. However, if the page was refreshed (clicking refresh in the browser), the value is still set and will perform the function again. I have used the unset() function after the variable is last used but if I refresh the browser again it still finds that the variable has set.

Any suggestions would be very appreciative.

Thanks,
Damien.

[Weedpacket]

Sounds like the same situation as the one described here a week ago.

[the_Igel]

the variable is sent via GET or POSt. When you refresh, it's sent again.

You may do following:
after processing the input you refresh the page

if (isset($sent_variable))
{
//
// process your data here
//
header('Refresh :0; url='.$_SERVER['PHP_SELF']);
exit;
}
else
{
//
// Output your page
//
}

[nigel_belanger]

I have the same problem. I am running an active session and a form to add items to a list.

The items are in a form and when the items are added, the form submission button name is passed and picked up to add the item to the list. When you refresh, the "retry or cancel" box pops up and if you click retry - it will add another to the list.

The command:

header('Refresh :0; url='.$_SERVER['PHP_SELF']);

Doesn't work for me. I can only refresh with the following command:

echo "<meta http-equiv=\"Refresh\" content=\"1;URL=index.php\">";

I also get headers already sent issues when I use this.

• I'm in Refresh Hell...