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<?php
header("Content-type: text/html; charset=utf-8");
??session_start();//啟動session
??// session_destroy();
??// die();
??// var_dump($_SESSION);
??// die();
??if(isset($_SESSION['username']) &&!empty($_SESSION['username'])){
???
??}
??else{
??? echo '<script language="JavaScript">;
????????? alert("尚未登錄，請先登錄！！");</script>';
????????? echo "<script>location.href='header.php'</script>";???exit;
??}
??
??// $uid = $_SESSION['uid'];
??$goods_id = $_POST['goods_id'];//獲取商品id
??// $size = $_POST['size'];
??// $color = $_POST['color'];
??$number = $_POST['num'];//獲取商品數(shù)量??// $numcol="$size"."$color";??// var_dump($_POST);
??// die();
??
??
??????if(empty($_SESSION["gwc"]))??{????? //1.購物車是空的，第一次點(diǎn)擊添加購物車????? $arr[$goods_id] =array(
????? ????'goods_id'? =>?$goods_id,
????? ????
????? ????'num'? =>?$number
????? ????
????? ????
????? ????);????? $_SESSION["gwc"]=$arr;????? // print_r($arr);
????? // die();
??}??else??{????? //不是第一次點(diǎn)擊????? //判斷購物車中是否存在該商品????? $arr = $_SESSION["gwc"]; //先存一下????? $chuxian = false;????? //查詢購物車中是否有該商品,KEY是商品id
????? foreach($arr as $k=> $v)
????? {
????? ?
????????? if($k==$goods_id)
????????? {????????????? $chuxian = true;????????? }????? }??
// 購物車中已有該商品，則只需將它的數(shù)量增加
????? if($chuxian)
????? {????? ?$arr[$goods_id]['num']+=$number;????????? //3.如果購物車中有該商品
????????? // if(!isset($arr[$goods_id])){
????????? // ?$arr[$goods_id]=array(
???????? ?// ???'id'? =>?$goods_id,
???????? ????
???????? ?// ???'num'? =>?$number
???????? ????
????? ????
????? ????// ???);
????????? // }else{
????????? // ?$arr[$goods_id]['num']+=$number;
????????? // }
?????????
????????? $_SESSION["gwc"] = $arr;
????? }
????? else
????? {????????? //2.如果購物車中沒有該商品
????????? $arr[$goods_id] = array(
????? ????'goods_id'? =>?$goods_id,????? ????
????? ????'num'? =>?$number????? ????
????? ????);??????????
????????? $_SESSION["gwc"] = $arr;?????????
????????? // print_r($arr);
????????? //? die();
????? }??}??// echo "OK";
??echo '<script language="JavaScript">;
alert("添加成功！");location.href="header.php";;';
?????????
??????? exit;
?// var_dump($_SESSION); //??? die ( );
??
#??
??>