A small example of php multi-value cookies

/**
* Set php multi-value cookies
* by bbs.it-home.org
*/
 if (!isset ($userdetails [0] ) ) {
 setcookie ("userdetails[0]", $username);
 }
 $ userdetails[1]++;
 setcookie ("userdetails[1]", $userdetails[1]);
 echo ("Hello $userdetails[0], you have visited this page: ".$userdetails[1]. ($userdetails[1] == l?" time!": "times!"));
?>