function saveBasket global basket basket base64_encode serialize baske

function saveBasket(){
 global $basket;
 $basket = base64_encode(serialize($basket));
 setcookie('basket', $basket, 0x7FFFFFFF);
}

function basketInit(){
 global $basket, $count;
 if(!isset($_COOKIE['basket'])){
  $basket = array('orderid' => uniqid());
  saveBasket();
 }else{
  $basket = unserialize(base64_decode($_COOKIE['basket']));
  $count = count($basket) - 1;
 }
}

basketInit();

function add2Basket($id){
 global $basket;
 $basket[$id] = 1;
 saveBasket();
}

if(isset($_GET['id'])){
 $id = $_GET['id'];
 add2Basket($id);
 header("Location: catalog.php");
}