PHP קוד:
function is_user() {
global $db;
$cookie = $_COOKIE["user"];
list ($username, $password) = explode("|", $cookie);
$query = $db->query("SELECT * FROM users WHERE username='$username' AND password='$password'");
$row = $db->num_rows($query);
if($row > 0) {
return true;
} else {
die("unregistered");
}
}