方法本質是：把cookie存入array，對array進行增加、刪除、修改操作，array中的每一組記錄都是一個商品的信息(個數，價格等)解決購物車的思路是用cookie記錄一個二維數組。一維代表每一個商品，二維包含了商品的id,商品的數量...等可以自行增加，反正都是二維了，自己愿意帶多少個商品屬性就加上去。對購物車里商品的操作一般有以下幾個：添加商品，修改商品數量，刪除商品，清空購物車。這幾個操作都是針對cookie的。每次把cookie中的數組取出來，增加、修改、刪除一番，再記錄到cookie中。至于清空購物車，那就更簡單了，直接設置同名的cookie為空就可以了。下面是我寫的具體操作函數//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 $key=&gt;$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=’http://blog.163.com/wz_pk007/blog/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));