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));