cookie存儲二維數組

//加入購物車 

 function addcart($goods_id,$goods_num){    

$cur_cart_array = unserialize(stripslashes($_COOKIE['shop_cart_info']));  

if($cur_cart_array==""){      

$cart_info[0][] = $goods_id;    $cart_info[0][] = $goods_num;       setcookie("shop_cart_info",serialize($cart_info));      

}elseif($cur_cart_array<>""){       

//返回數組鍵名倒序取最大    

$ar_keys = array_keys($cur_cart_array);    

rsort($ar_keys);    $max_array_keyid = $ar_keys[0]+1;      

//遍歷當前的購物車數組    //遍歷每個商品信息數組的0值，如果鍵值為0且貨號相同則購物車存在相同貨品    foreach($cur_cart_array as $goods_current_cart){    

foreach($goods_current_cart as $key=>$goods_current_id){    

  if($key == 0 and $goods_current_id == $goods_id){  

  echo "<script language=javascript>";   

echo "if(confirm('購物車已經有該商品，繼續購物按----確定!查看購物車按----取消!'))";    echo "{history.go(-1)}";   

echo "else{window.location.href='xqs_cart.php'}";    

echo "</script>";  

    exit();    

  }     }    }       

$cur_cart_array[$max_array_keyid][] = $goods_id;   

$cur_cart_array[$max_array_keyid][] = $goods_num;       setcookie("shop_cart_info",serialize($cur_cart_array));  

     }        }  

//從購物車刪除  function delcart($goods_array_id){    $cur_goods_array = unserialize(stripslashes($_COOKIE['shop_cart_info']));    //刪除該商品在數組中的位置   unset($cur_goods_array[$goods_array_id]);   

setcookie("shop_cart_info",serialize($cur_goods_array));   }      //修改購物車貨品數量  function update_cart($up_id,$up_num,$goods_ids){     

//先清空cookie,以便重新設置，傳遞過來三個數組參數 1數組的標識 2商品數量數組 3商品編號數組   //如果不清空cookie則無法處理數量為零的商品 

  setcookie("shop_cart_info","");   foreach($up_id as $song){      //先返回數組當前單元；再把指針向下移動一個位置   

$goods_nums = current($up_num);    

$goods_id = current($goods_ids);   

next($up_num);    next($goods_ids);       //當商品數量為空的時候，注銷此處的數組值并用continue 2 語句避開下面的操作，繼續做foreach循環    

while($goods_nums == 0){  

  unset($song);     continue 2;  

  }    

   $cur_goods_array[$song][0] = $goods_id;    $cur_goods_array[$song][1] = $goods_nums; 

     }    

setcookie("shop_cart_info",serialize($cur_goods_array));