php cookie/session cart 购物车

superadmin · 发表于 2009-6-3 17:35:34

缺点每次更改cookie都要刷新页面以获取最新的cookie值(cookie保存在客户端)

<?php

class CookieCart
{

var $cookieName='eifrcookeCart';

//获取购物车信息
function getcart()
{
$cur_cart_array = unserialize(stripslashes($_COOKIE[$this->cookieName]));
return $cur_cart_array;
}

//加入购物车
function addcart($goods_id,$goods_num)
{
$cur_cart_array = unserialize(stripslashes($_COOKIE[$this->cookieName]));
if($cur_cart_array=="")
{
      $cart_info[0][] = $goods_id;
      $cart_info[0][] = $goods_num;
      setcookie($this->cookieName,serialize($cart_info));
}
elseif($cur_cart_array<>"")
{
      //返回数组键名倒序取最大
      $ar_keys = array_keys($cur_cart_array);
      rsort($ar_keys);
      $max_array_keyid = $ar_keys[0]+1;
      //遍历当前的购物车数组
      //遍历每个商品信息数组的0值，如果键值为0且货号相同则购物车存在相同货品
      $is_exist = false;
      foreach($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)
            {
                  $is_exist = true;
                  break;
            }
         }
      }
      if(!$is_exist)
      {
         $cur_cart_array[$max_array_keyid][] = $goods_id;
         $cur_cart_array[$max_array_keyid][] = $goods_num;
         setcookie($this->cookieName,serialize($cur_cart_array));
      }
}
}

//从购物车删除
function delcart($goods_array_id)
{
$cur_goods_array = unserialize(stripslashes($_COOKIE[$this->cookieName]));
//删除该商品在数组中的位置
unset($cur_goods_array[$goods_array_id]);
setcookie($this->cookieName,serialize($cur_goods_array));
}

//清空购物车
function emptycart()
{
setcookie($this->cookieName,"");
}

//修改购物车货品数量
function update_cart($up_id,$up_num,$goods_ids)
{

//先清空cookie,以便重新设置，传递过来三个数组参数 1数组的标识 2商品数量数组 3商品编号数组
//如果不清空cookie则无法处理数量为零的商品
setcookie($this->cookieName,"");
foreach($up_id as $song)
{

      //先返回数组当前单元；再把指针向下移动一个位置
      $goods_nums = current($up_num);
      $goods_id = current($goods_ids);
      next($up_num);
      next($goods_ids);
      //当商品数量为空的时候，注销此处的数组值并用continue 2 语句避开下面的操作，继续做foreach循环
      while($goods_nums == 0)
      {
         unset($song);
         continue 2;
      }

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

setcookie($this->cookieName,serialize($cur_goods_array));

}
}
?>

superadmin · 发表于 2009-6-3 17:42:42

<?php

class SessionCart
{

var $sessionName='eifrSessionCart';

//初始化
function SessionCart()
{
if(!isset($_SESSION[$this->sessionName]))
{
      session_register($this->sessionName);
      $_SESSION[$this->sessionName] = '';
}
}

//获取购物车信息
function getcart()
{
$cur_cart_array = unserialize($_SESSION[$this->sessionName]);
return $cur_cart_array;
}

//加入购物车
function addcart($goods_id,$goods_num)
{
$cur_cart_array = unserialize($_SESSION[$this->sessionName]);
if($cur_cart_array=="")
{
      $cur_cart_array[0][] = $goods_id;
      $cur_cart_array[0][] = $goods_num;
      $_SESSION[$this->sessionName] = serialize($cur_cart_array);
}
elseif($cur_cart_array<>"")
{
      //返回数组键名倒序取最大
      $ar_keys = array_keys($cur_cart_array);
      rsort($ar_keys);
      $max_array_keyid = $ar_keys[0]+1;
      //遍历当前的购物车数组
      //遍历每个商品信息数组的0值，如果键值为0且货号相同则购物车存在相同货品
      $is_exist = false;
      foreach($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)
            {
                  $is_exist = true;
                  break;
            }
         }
      }
      if(!$is_exist)
      {
         $cur_cart_array[$max_array_keyid][] = $goods_id;
         $cur_cart_array[$max_array_keyid][] = $goods_num;
         $_SESSION[$this->sessionName] = serialize($cur_cart_array);
      }
}
}

//从购物车删除
function delcart($goods_array_id)
{
$cur_goods_array = unserialize($_SESSION[$this->sessionName]);
//删除该商品在数组中的位置
unset($cur_goods_array[$goods_array_id]);
$_SESSION[$this->sessionName] = serialize($cur_goods_array);
}

//清空购物车
function emptycart()
{
$_SESSION[$this->sessionName] = '';
}

//修改购物车货品数量
function update_cart($up_id,$up_num,$goods_ids)
{

//先清空cookie,以便重新设置，传递过来三个数组参数 1数组的标识 2商品数量数组 3商品编号数组
//如果不清空cookie则无法处理数量为零的商品
$_SESSION[$this->sessionName] = '';
foreach($up_id as $song)
{

      //先返回数组当前单元；再把指针向下移动一个位置
      $goods_nums = current($up_num);
      $goods_id = current($goods_ids);
      next($up_num);
      next($goods_ids);
      //当商品数量为空的时候，注销此处的数组值并用continue 2 语句避开下面的操作，继续做foreach循环
      while($goods_nums == 0)
      {
         unset($song);
         continue 2;
      }

      $cur_goods_array[$song][0] = $goods_id;
      $cur_goods_array[$song][1] = $goods_nums;
}
$_SESSION[$this->sessionName] = serialize($cur_goods_array);

}

}
?>

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php cookie/session cart 购物车

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