1. $_SERVER['QUERY_STRING'] (Raw): string(18) "cal_m=7&cal_y=2172" 2. Array $_GET: array(2) { ["cal_m"]=> string(1) "7" ["cal_y"]=> string(4) "2172" } 3. $_SERVER['REQUEST_URI'] (Original): string(29) "/index.php?cal_m=7&cal_y=2172"