Description:
------------
I am getting session variables with the same value as the 
$_GET variables... please advise

Reproduce code:
---------------
session_start();
$sesuid= $_SESSION['uid'];


//check for the _get
if (isset( $_GET['mid'])) {
	$uid = $_GET['mid'];
} else if (isset( $_GET['uid'])) {
	$uid = $_GET['uid'];
} else {
	echo '<p class="error">You have reached this page in error (no model selected).</p>';
}
$_SESSION['uid']=$sesuid;

Expected result:
----------------
$_GET['uid'] get's the value of $_SES['uid']

Actual result:
--------------
neither $_GET nore $_SES['uid'] should change