PHP experts please answer?

[MrKenkadze27]

is there any way to grab facebook cookies from user browser when she visits my link?

Here is what is going on: i have made an ip logger php scripts that works fine but i want it to grab facebook logged in users profile id and log it. Example:

<?
function fbidcook(){
// something that gets users id form browser cookes
}
$id = fbidcook("getidprofile");
...
$tolog = $ip . " - " . $id;
fwrite($file, $tolog);
?>