chen
更新時間：2016/9/5 下午 04:38:32

這是EDcart.php裡面的程式碼

<?php

class edCart {
var $total = 0;
var $deliverfee = 0; //修改，運費
var $grandtotal = 0; //加上了運費後的總合費用
var $itemcount = 0;
var $items = array();
var $itemprices = array();
var $itemqtys = array();
var $iteminfo = array();
var $itempic = array();

function cart() {} // 宣告函數

function get_contents(){ // 取得購物車內容
$items = array();
foreach($this->items as $tmp_item){
    $item = FALSE;
$item['id'] = $tmp_item;
$item['qty'] = $this->itemqtys[$tmp_item];
$item['price'] = $this->itemprices[$tmp_item];
$item['info'] = $this->iteminfo[$tmp_item];
$item['pic'] = $this->itempic[$tmp_item];
$item['subtotal'] = $item['qty'] * $item['price'];
$items[] = $item;
}
return $items;
}


function add_item($itemid,$qty=1,$price = FALSE, $info = FALSE, $pic = FALSE){ // 新增至購物車
if(isset($this->itemqtys[$itemid]) && $this->itemqtys[$itemid] > 0){
$this->itemqtys[$itemid] = $qty + $this->itemqtys[$itemid];
$this->_update_total();
} else {
$this->items[]=$itemid;
$this->itemqtys[$itemid] = $qty;
$this->itemprices[$itemid] = $price;
$this->iteminfo[$itemid] = $info;
$this->itempic[$itemid] = $pic;
}
$this->_update_total();
}


function edit_item($itemid,$qty){ // 更新購物車數量
if($qty < 1) {
$this->del_item($itemid);
} else {
$this->itemqtys[$itemid] = $qty;
}
$this->_update_total();
}


function del_item($itemid){ // 移除購物車
$ti = array();
$this->itemqtys[$itemid] = 0;
foreach($this->items as $item){
if($item != $itemid){
$ti[] = $item;
}
}
$this->items = $ti;
$this->_update_total();
}


function empty_cart(){ // 清空購物車
$this->total = 0;
$this->itemcount = 0;
$this->items = array();
$this->itemprices = array();
$this->itemqtys = array();
$this->itemdescs = array();
}

function _update_total(){ // 更新購物車的內容
$this->itemcount = 0;
$this->total = 0;
if(sizeof($this->items > 0)){
foreach($this->items as $item) {
$this->total = $this->total + ($this->itemprices[$item] * $this->itemqtys[$item]);
$this->itemcount++;
}
}
$this->grandtotal = $this->total + $this->deliverfee + $this->freezingdeliverfee;
//計算最後總計
}
}
?>



請問一下各位我要如何新增一個不同的運費
就是我買冷凍食品的時候會有一種運費，買常溫食品會有一種運費
如果兩個都買運費會相加在一起
如果只買一樣產品就只會有一種運費
是要從mystore.sql裡面新增一欄用那欄判斷嗎
請問要怎麼寫