來網站逛的顧客可因喜歡的產品放置購物車裡，可在挑選 其他有興趣的產品 ，不讓因產品位置不同而尋找很久，
讓費您寶貴的時間。
購物車程式碼
<?php
session_start();
//header("Content-Type: text/html; charset=big5");
include("../connMysql.php");
$seldb = @mysql_select_db($DB);
if (!$seldb) die("資料庫選擇失敗！");
// 會員帳號
if (isset($_SESSION["login_id"])) {
$member_acc = $_SESSION["login_id"];
} else {
// 尚未登入 (訪客)
$member_acc = "visiter";
}
// 刪除購物車的商品 by terry0412 if (isset($_POST["remove-item"])) { // 流水號
$key_id = $_POST["remove-item"];
$sql_query = "DELETE FROM shoppingcart where
member_acc = '$member_acc' and key_id = '$key_id'";
mysql_query($sql_query);
}
// 加入購物車 by terry0412
else if (isset($_POST["item_id"])) {
$item_id = $_POST["item_id"];
// 檢查是否已經有重複的資料
$sql_query2 = "SELECT * FROM shoppingcart where
member_acc = '$member_acc' and item_id = '$item_id'";
if (mysql_num_rows(mysql_query($sql_query2)) > 0) { // 加入商品數量
mysql_query("UPDATE shoppingcart SET item_count = item_count + 1 where member_acc = '$member_acc' and item_id = '$item_id'");
} else {
// 新增購物車商品
mysql_query("INSERT INTO shoppingcart(member_acc, item_id, item_count) values('$member_acc', '$item_id', '1')");
}
echo "<script>window.alert('已加入到購物車
~~~');</script>";
}
// 更新購物車 by terry0412
else if (isset($_POST["update-item"])) { // 商品流水號
$key_id = $_POST["update-item"];
// 商品數量
$item_count = $_POST["$key_id"];
// 刪除資料
if ($item_count <= 0) {
$sql_query = "DELETE FROM shoppingcart where
member_acc = '$member_acc' and key_id = '$key_id'";
mysql_query($sql_query);
}
// 更新資料 else {
$sql_query = "UPDATE shoppingcart SET item_count = '$item_count' where member_acc = '$member_acc' and key_id = '$key_id'";
mysql_query($sql_query);
} }
// 確認結帳 by terry0412
else if (isset($_POST["B2"])) { // 讀取使用者資料
$sql_query = "SELECT * FROM members WHERE username
= '" . $member_acc . "'";
$result_user =
mysql_fetch_assoc(mysql_query($sql_query));
}
// else => 最後顯示購物車清單 // SQL 敘述句 (將關聯資料加進來)
$sql_query = "SELECT * FROM shoppingcart JOIN items ON item_id = id and member_acc = '" . $member_acc . "'";
// TODO 排序功能 (ASC:由小排到大)
$sql_query .= " ORDER BY key_id";
// 將 SQL 敘述句查詢資料加到 $result 中
$result = mysql_query($sql_query);
// 計算總筆數
$total_records = mysql_num_rows($result);
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=utf8">
<title>查看購物車</title>
</head>
<body background="000002.gif">
<?php
//mysql_data_seek($result, 0); // 將資料指標索引回到最前面第 0 筆
if ($total_records <= 0) {
echo "<form method='POST' action='cart.php'>";
echo "<table border='1' width='60%'>";
echo "我的購物車：<br><br>";
echo "(購物車內目前是空的)";
echo "</table>";
} else {
if (!isset($result_user)) { // 購物車
echo "<form method='POST' action='cart.php'>";
echo "<table border='1' width='60%'>";
echo "我的購物車：<br><br>";
// 表頭內容 echo "<tr>";
echo " <th width='5%'> </th>";
echo " <th width='9%'> </th>";
echo " <th width='60%'>商品名稱</th>";
echo " <th width='6%'>單價</th>";
echo " <th width='7%'>數量</th>";
echo " <th width='10%'>小計</th>";
echo "</tr>";
// 累計金額
$total_price = 0;
// 表格內容
while ($row_result = mysql_fetch_assoc($result)) { echo "<tr>";
echo " <td>";
echo " <p align='center'>";
// 刪除購物車內的商品
echo " <button name='remove-item' value='" .
$row_result["key_id"] . "'>移除</button></td>";
echo " <td>";
echo " <p align='center'>";
echo " <img border='0' src='../images/" .
$row_result["item_id"] . ".jpg' width='150' height='150'></td>";
echo " <td>" . $row_result["name"] . "</td>";
echo " <td>" . $row_result["price"] . "</td>";
echo " <td>";
echo " <input type='text' name='" .
$row_result["key_id"] . "' size='4' value='" .
$row_result["item_count"] . "' style='border-style: solid;
border-width: 1px; padding-left: 4px; padding-right: 4px;
padding-top: 1px; padding-bottom: 1px'>";
echo " <button name='update-item' value='" .
$row_result["key_id"] . "'>更新</button></td>";
// 將小計金額計算出來
$calc_count = $row_result["price"] *
$row_result["item_count"];
echo " <td>NT " . $calc_count . "</td>";
echo "</tr>";
// 最後加入總價中
$total_price += $calc_count;
}
// 顯示總計金額 echo "<tr>";
echo " <td colspan='6'><p align='right' size='14'>總 計: NT " . $total_price . " </td>";
echo "</tr>";
// 結帳選項
echo " <table border='0' width='60%'>";
echo " <tr>";
echo " <td align='center' width='107'>";
echo " <input type='submit' value='確認結帳' name='B2' style='float: right'></td>";
echo " </tr>";
echo " </table>";
echo "</table>";
echo "</form>";
} else { // 結帳
echo " <p>=== 您的訂單===</p>";
echo "<table border='1' width='60%'>";
// 表頭內容 echo " <tr>";
echo " <th width='9%'> </th>";
echo " <th width='60%'>商品名稱</th>";
echo " <th width='6%'>單價</th>";
echo " <th width='7%'>數量</th>";
echo " <th width='10%'>小計</th>";
echo " </tr>";
// 累計金額
$total_price = 0;
// 表格內容
while ($row_result = mysql_fetch_assoc($result)) { echo " <tr>";
echo " <td>";
echo " <p align='center'>";
echo " <img border='0' src='../images/" .
$row_result["item_id"] . ".jpg' width='50' height='50'></td>";
echo " <td>" . $row_result["name"] . "</td>";
echo " <td>" . $row_result["price"] . "</td>";
echo " <td>" . $row_result["item_count"] . "</td>";
// 將小計金額計算出來
$calc_count = $row_result["price"] *
$row_result["item_count"];
echo " <td>NT " . $calc_count . "</td>";
echo " </tr>";
// 最後加入總價中
$total_price += $calc_count;
}
echo "</table>";
// 表單加註 name 是為了接收至 javascript 動作
echo "<form method='POST' action='check_out.php' name='cart'>";
echo " <p>===請確認收件人資訊===</p>";
echo " <p>姓名 : <input type='text' name='T2' size='15' value='" . $result_user["name"] . "'></p>";
echo " <p>送貨地址 : <input type='text' name='T3' size='30' value='" . $result_user["address"] . "'></p>";
echo " <p>電話 : <input type='text' name='T4' size='10' value='" . $result_user["tel"] . "'></p>";
echo " <p>電子信箱 : <input type='text' name='T6' size='15' value='" . $result_user["email"] . "'></p>";
echo " <p> </p>";
echo " <p>付款方式:";
echo " <select size='1' name='D1'>";
echo " <option value='1'>臨櫃匯款</option>";
echo " <option value='2'>ATM 匯款</option>";
echo " <option value='3'>貨到付款</option>";
echo " </select></p>";
echo " <p><input type='submit' value='送出訂單' name='B3'></p>";
echo "</form>";
} }
?>
</body>
<script type="text/javascript">
function check_price() {
var total_price = <?php echo $total_price; ?>;
// 強制轉型十進位整數
document.cart.price.value =
parseInt(document.cart.R1.value, 10) + parseInt(total_price, 10);
}
function show_alert() {
window.alert("已成功送出訂單!");
}
</script>
</html>