Description:
------------
With the code below, the expected function is that a returning user with the 'lfp_guid' cookie will be recognized when the cookie is read. However, the lfp_guid is never found  again after creation and a new lfp_guid is created at the beginning of each session. 


Reproduce code:
---------------
class lfp_user {
	var $guid;
	function lfp_user() {
		if (isset($_COOKIE['lfp_guid'])) {
			$this->guid =$_COOKIE['lfp_guid'];
		} else {
			$this->guid = md5(uniqid(rand(0,1)*100,true));
			setcookie("lfp_guid",$this->guid,time()+60*60*24*365*2,"","127.0.0.1",true);
		}

		echo "LFP_USER.constructor: _COOKIE['lfp_guid']== '".$_COOKIE['lfp_guid']."'<br>";
		echo "LFP_USER.constructor: GUID == ".$this->guid."<br>";
		
		//echo isset($_COOKIE['lfp_guid'])."<br>";
	} // end constructor
} // end class
session_start();
if (empty($_COOKIE['PHPSESSID'])) {			
		$_SESSION['lfp_user'] = new lfp_user();	
}	
// kill session and reload page again to see nothing in cookie:
print_r($_COOKIE);

Expected result:
----------------
Since the lfp_guid cookie is actually set on the user's machine, $_COOKIE would access this list and store it in the new object.


Actual result:
--------------
A new lfp_guid is created and set on the user's machine no matter what.