Description:
------------
Attempting to use isset() to find out when a user's submitted a form, and if they have, then I give them particular output. This works on Linux using old PHP 4.x, but I don't have access to that anymore. This doesn't work on WinXP (with SP2, if that matters).

I suspect this is related to bug #29883 @ http://bugs.php.net/bug.php?id=29883 (which is supposed to be fixed), because I tested for it and it comes out with the unexpected result. 

I'm 110% baffled.

- Devon

Reproduce code:
---------------
I'm using PHP 5.0.4 on WinXP (with SP2 if that matters at <form method="get" action="this_file.php">
<input type="submit" value="ad" name="adicion" id="adicion" />
</form>

<?php
if(isset($adicion)) {
	echo "expected result after form is submitted.";
} else {
	echo "Only seen before form is submitted.";
}
?>

Expected result:
----------------
expected result after form is submitted.

Actual result:
--------------
Only seen before form is submitted.