一个简单的php+Ajax购物车程序代码(1/2)_php教程

一个简单的php+Ajax购物车程序代码(1/2)

本文章来给大家推荐一个不错的购物车效果，这里主要求包括了几个东西，一个是购物车类用php写的，还有一个Ajax操作用到了jquery，还有一个jquery插件thickbox了，下面我们来看看。

购物车类:shop_cart.php
购物车的操作：cart_action.php
首页：index.html
Ajax操作用到了jquery，还有一个jquery插件thickbox

不多说了你可以先看看效果示例
shop_cart.php当然是购物车的核心，但是这个类很简单，因为他又引进了cart_action.php用于对外操作。所以这个类显得相当精简。
购物车类shop_cart.php

代码如下

复制代码

cart_name = $name;
$this->items = $_SESSION[$this->cart_name];
}

/**
* setItemQuantity() - Set the quantity of an item.
*
* @param string $order_code The order code of the item.
* @param int $quantity The quantity.
*/
function setItemQuantity($order_code, $quantity) {
$this->items[$order_code] = $quantity;
}

/**
* getItemPrice() - Get the price of an item.
*
* @param string $order_code The order code of the item.
* @return int The price.
*/
function getItemPrice($order_code) {
// This is where the code taht retrieves prices
// goes. We'll just say everything costs $9.99 for this tutorial.
return 9.99;
}

/**
* getItemName() - Get the name of an item.
*
* @param string $order_code The order code of the item.
*/
function getItemName($order_code) {
// This is where the code that retrieves product names
// goes. We'll just return something generic for this tutorial.
return 'My Product (' . $order_code . ')';
}

/**
* getItems() - Get all items.
*
* @return array The items.
*/
function getItems() {
return $this->items;
}

/**
* hasItems() - Checks to see if there are items in the cart.
*
* @return bool True if there are items.
*/
function hasItems() {
return (bool) $this->items;
}

/**
* getItemQuantity() - Get the quantity of an item in the cart.
*
* @param string $order_code The order code.
* @return int The quantity.
*/
function getItemQuantity($order_code) {
return (int) $this->items[$order_code];
}

/**
* clean() - Cleanup the cart contents. If any items have a
* quantity less than one, remove them.
*/
function clean() {
foreach ( $this->items as $order_code=>$quantity ) {
if ( $quantity < 1 ) unset($this->items[$order_code]);
}
}

/**
* save() - Saves the cart to a session variable.
*/
function save() {
$this->clean();
$_SESSION[$this->cart_name] = $this->items;
}
}

对于cart_action，他实现了shop_cart类与index的中间作用，用于更新，删除，增加商品的操作。
cart_action.php

代码如下

复制代码

getItemQuantity($_GET['order_code'])+$_GET['quantity'];
$Cart->setItemQuantity($_GET['order_code'], $quantity);
}else{

if ( !empty($_GET['quantity']) ) {
foreach ( $_GET['quantity'] as $order_code=>$quantity){
$Cart->setItemQuantity($order_code, $quantity);
}
}

if ( !empty($_GET['remove']) ) {
foreach ( $_GET['remove'] as $order_code ) {
$Cart->setItemQuantity($order_code, 0);
}
}
}
$Cart->save();

header('Location: cart.php');

还有就是index.html实现对外的操作，也就是添加操作

代码如下

复制代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<title>Shopping Cart</title>
<script src="js/jquery-1.2.6.pack.js" type="text/javascript"></script>
<script src="js/jquery.color.js" type="text/javascript"></script>
<script src="js/thickbox.js" type="text/javascript"></script>
<script src="js/cart.js" type="text/javascript"></script>
<link href="css/style.css" rel="stylesheet" type="text/css" media="screen" />
<link href="css/thickbox.css" rel="stylesheet" type="text/css" media="screen" />

return false;
});
});
</script>
</head>
<body>
<div id="container">
<h1>购物车</h1>
<a href="cart.php?KeepThis=true&amp;amp;amp;amp;amp;amp;TB_iframe=true&amp;amp;amp;amp;amp;amp;height=400&amp;amp;amp;amp;amp;amp;width=780" title="Your Shopping Cart" class="thickbox">打开购物车</a>
<hr />
<a href="cart_action.php?order_code=KWL-JFE&amp;amp;amp;amp;amp;amp;quantity=3&amp;amp;amp;amp;amp;amp;TB_iframe=true&amp;amp;amp;amp;amp;amp;height=400&amp;amp;amp;amp;amp;amp;width=780" title="Your Shopping Cart" class="thickbox">添加三个 KWL-JFE 到购物车</a>
<hr />
<form class="cart_form" action="cart_action.php" method="get">
<input type="hidden" name="order_code" value="KWL-JFE" />
<label>KWL-JFE: <input class="center" type="text" name="quantity" value="1" size="3" ?></label>
<input type="submit" name="submit" value="添加到购物车" />
</form>
</div>
</body>
</html>

还有就是cart.php这是我们的购物车

代码如下

复制代码

<?php
include('shopping_cart.class.php');
session_start();
$Cart = new Shopping_Cart('shopping_cart');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<head>
<title>Shopping Cart</title>
<script src="js/jquery-1.2.6.pack.js" type="text/javascript"></script>
<script src="js/jquery.color.js" type="text/javascript"></script>
<script src="js/cart.js" type="text/javascript"></script>
<link href="css/cart.css" rel="stylesheet" type="text/css" media="screen" />
</head>
<body>
<div id="container">
<h1>Shopping Cart</h1>
<?php if ( $Cart->hasItems() ) : ?>
<form action="cart_action.php" method="get">
<table id="cart">
<tr>
<th>数量</th>
<th>商品名称</th>
<th>商品编号</th>
<th>单价</th>
<th>总价</th>
<th>删除</th>
</tr>
<?php
$total_price = $i = 0;
foreach ( $Cart->getItems() as $order_code=>$quantity ) :
$total_price += $quantity*$Cart->getItemPrice($order_code);
?>
<?php echo $i++%2==0 ? "<tr>" : "<tr class='odd'>"; ?>
<td class="quantity center"><input type="text" name="quantity[<?php echo $order_code; ?>]" size="3" value="<?php echo $quantity; ?>" tabindex="<?php echo $i; ?>" /></td>
<td class="item_name"><?php echo $Cart->getItemName($order_code); ?></td>
<td class="order_code"><?php echo $order_code; ?></td>
<td class="unit_price">$<?php echo $Cart->getItemPrice($order_code); ?></td>
<td class="extended_price">$<?php echo ($Cart->getItemPrice($order_code)*$quantity); ?></td>
<td class="remove center"><input type="checkbox" name="remove[]" value="<?php echo $order_code; ?>" /></td>
</tr>
<?php endforeach; ?>
<tr><td colspan="2"></td><td colspan="3" id="total_price">您的消费总金额是:￥<?php echo $total_price; ?></td></tr>
</table>
<input type="submit" name="update" value="保存购物车" />
</form>
<?php else: ?>
<p class="center">您还没有购物.</p>
<?php endif; ?>
<p><a href="load.php">加载简单的购物车</a></p>
</div>
</body>
</html>

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