Posted by Rik on 08/21/06 10:57

Vash wrote:
> Juliette wrote:
>> alex.alexander@gmail.com wrote:
>>> I've been searching for a way to prevent that STUPID re-post warning
>>> message from showing up when you hit the refresh button on your
>>> browser...
>>>
>>> I finally found a good solution that does not require redirection,
>>> extra pages, etc. etc.
>>>
>>> Just run the following commands at the end of your post-processing
>>> php file:
>>>
>>> foreach ($_POST as $var => $value) {
>>> unset($var);
>>> }
>>>
>>> This way you'll never have re-posting issues and you'll get rid of
>>> the stupid warning message! :D
>>>
>>
>> Except that your solution will not work as you are only unsetting the
>> local variable $var.
>>
>> However the following should work:
>>
>> unset( $_POST);
>>
>> or:
>>
>> foreach( $_POST as $var => $value) {
>> unset( $_POST[$var] );
>> }
> Well, it's strange. I used this method to prevent the message from
> popping up when I posted data through the httprequest object and then
> hit F5 and it worked.
>
> However, when I try it on a simple page with a simple form it does not
> work (nor my original code or your modified one).
>
> I'll check it out and get back to you.
>
> Alex

Well, I'd be flabbergasted when this method actually worked.
Some insight: if the user hits the back button, and goes back to a page
where he arrived using a POST, and the browser does indeed request the page
again, instead of getting it form it's cache, POST values are send with the
HTTP request again. So the $_POST array will be populated, the script will
work as it did before.

The method mentioned here is utterly useless IMO.

Grtz,
--
Rik Wasmus

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