這里我們?yōu)槟闾峁﹤€(gè)簡單的php購物車代碼,從增加購物產(chǎn)品與發(fā)生購買了,在商城開發(fā)中,這個(gè)功能是少不了的,我們不需要數(shù)據(jù)庫,用了txt文本文件來操作用戶購物的內(nèi)容.
增加商品到購物車,代碼如下:
- <?php
- //
- // add_item.php:
- // Add an item to the shopping cart.
- //
- session_start();
- if (session_is_registered('cart')) {
- session_register('cart');
- }
- require 'lib.inc.php'; // LoadProducts()
- LoadProducts(); // Load products in $master_products_list
- // Make $curr_product global
- $curr_product = array();
- // Loop through all the products and pull up the product
- // that we are interested in
- foreach ($master_products_list as $prod_id => $product) {
- if (trim($prod_id) == trim($_GET[id])) {
- $curr_product = $product;
- }
- }
- // Register our session
- //session_register('cart');
- //if(session_is_registered('cart')) echo "已經(jīng)注冊";
- if ($_POST[ordered]) { // If they have chosen the product
- array_push($_SESSION[cart][products], array(trim($_POST[id]), $_POST[quantity]));
- $_SESSION[cart][num_items] += $_POST[quantity];
- }
- ?>
- <html>
- <head>
- <title>
- <?php if ($_POST[ordered]) { ?>
- 已經(jīng)添加 <?php echo $curr_product[name]; ?> 到您的購物籃
- <?php } else { ?>
- 添加 <?php echo $curr_product[name]; ?> 到您的購物籃
- <?php } ?>
- </title>
- </head>
- <body>
- <?php if ($_POST[ordered]) { ?>
- <h1><?php echo $curr_product[name]; ?>
- 添加至購物籃成功</h1>
- <a href="cart.php">返回</a> 商品列表頁面.
- <?php } else { ?>
- <h1>添加 <?php echo $curr_product[name]; ?> 到您的購物籃</h1>
- <form action="<?php echo $PHP_SELF; ?>" method="post">
- 商品名稱: <?php echo $curr_product[name]; ?>
- <br>
- 商品說明: <?php echo $curr_product[desc]; ?>
- <br>
- 商品單價(jià): RMB<?php echo $curr_product[price]; ?>
- <br>
- 商品數(shù)量: <input type="text" size="7" name="quantity">
- <input type="hidden" name="id" value="<?php echo $_GET[id]; ?>">
- <input type="hidden" name="ordered" value="1">
- //開源代碼Vevb.com
- <input type="submit" value="添加至購物欄">
- </form>
- <?php } ?>
- </body>
- </html>
查看購物車的商品,代碼如下:
- <?php
- //
- // cart.php: m.survivalescaperooms.com
- //
- session_start();
- require 'lib.inc.php';
- //判斷購物籃會話變量cart是否注冊,不注冊則注冊cart變量
- if (session_is_registered('cart')) {
- session_register('cart');
- }
- // 如果購物籃沒有初始化,則初始化購物籃
- if (!isset($_SESSION[cart][num_items])) {
- $_SESSION[cart] = array("num_items" => 0,
- "products" => array());
- }
- // From site_lib.inc, Loads the $master_products_list array
- LoadProducts(); //載入物品列表
- ?>
- <html>
- <head>
- <title>演示會話跟蹤的購物籃程序</title>
- </head>
- <body>
- <h1>歡迎進(jìn)入網(wǎng)上商店</h1>
- <?php
- if ($_SESSION[cart][num_items]) { // If there is something to show
- ?>
- <h2>當(dāng)前在購物籃里的物品</h2>
- <br>
- <table border="2" cellpadding="5" cellspacing="2">
- <tr>
- <th>
- 商品名稱
- </th>
- <th>
- 商品說明
- </th>
- <th>
- 單價(jià)
- </th>
- <th>
- 數(shù)量
- </th>
- <th>
- </th>
- </tr>
- <?php
- // Loop through the products
- foreach ($_SESSION[cart][products] as $i => $product) {
- $product_id = $product[0];
- $quantity = $product[1];
- $total += $quantity *
- (double)$master_products_list[$product_id][price];
- ?>
- <tr>
- <td>
- <?php echo $master_products_list[$product_id][name]; ?>
- </td>
- <td>
- <?php echo $master_products_list[$product_id][desc]; ?>
- </td>
- <td>
- <?php echo $master_products_list[$product_id][price]; ?>
- </td>
- <td>
- <form action="change_quant.php" method="post">
- <input type="hidden" name="id" value="<?php echo $i; ?>">
- <input type="text" size="3" name="quantity"
- value="<?php echo $quantity; ?>">
- </td>
- <td>
- <input type="submit" value="數(shù)量更改">
- </form>
- </td>
- </tr>
- <?php
- }
- ?>
- <tr>
- <td colspan="2" ALIGN="right">
- <b>合計(jì): </b>
- </td>
- <td colspan="2">
- RMB:<?php echo $total; ?>
- </td>
- <td> </td>
- </tr>
- </table>
- <br>
- <br>
- <?php
- }
- ?>
- <h2>商店待出售的商品</h2>
- <br>
- <i>
- 我們提供以下商品待售:
- </i>
- <br>
- <table border="2" cellpadding="5" cellspacing="2">
- <tr>
- <th>
- 商品名稱
- </th>
- <th>
- 商品說明
- </th>
- <th>
- 單價(jià)
- </th>
- <th>
- </th>
- </tr>
- <?php
- // Show all of the products
- foreach ($master_products_list as $product_id => $item) {
- ?>
- <tr>
- <td>
- <?php echo $item[name]; ?>
- </td>
- <td>
- <?php echo $item[desc]; ?>
- </td>
- <td>
- $<?php echo $item[price]; ?>
- </td>
- <td>
- <a href="add_item.php?id=<?php echo $product_id; ?>">
- 添加至購物籃
- </a>
- </td>
- </tr>
- <?php
- }
- ?>
- </table>
修改購物車的數(shù)量,代碼如下:
- <?php
- //
- // change_quant.php:
- // Change the quantity of an item in the shopping cart.
- //
- session_start();
- if (session_is_registered('cart')) {
- session_register('cart');
- }
- // Typecast to int, making sure we access the
- // right element below
- $i = (int)$_POST[id];
- // Save the old number of products for display
- // and arithmetic
- $old_num = $_SESSION[cart][products][$i][1];
- if ($_POST[quantity]) {
- $_SESSION[cart][products][$i][1] = $_POST[quantity]; //change the quantity
- } else {
- unset($_SESSION[cart][products][$i]); // Send the product into oblivion
- }
- // Update the number of items
- $_SESSION[cart][num_items] = ($old_num >$_POST[quantity]) ?
- $_SESSION[cart][num_items] - ($old_num-$_POST[quantity]) :
- $_SESSION[cart][num_items] + ($_POST[quantity]-$old_num);
- ?>
- <html>
- <head>
- <title>
- 數(shù)量修改
- </title>
- </head>
- <body>
- <h1> 將數(shù)量: <?php echo $old_num; ?> 更改為
- <?php echo $_POST[quantity]; ?></h1>
- <a href="cart.php">返回</a> 商品列表頁面.
- </body>
- </html>
功能頁面,用戶把購物車?yán)锩娴膬?nèi)容保存到txt數(shù)據(jù)庫,代碼如下:
- <?php
- //物品數(shù)組
- $master_products_list = array();
- //載入物品數(shù)據(jù)函數(shù)
- function LoadProducts() {
- global $master_products_list;
- $filename = 'products.txt';
- $fp = @fopen($filename, "r")
- or die("打開 $filename 文件失敗");
- @flock($fp, 1)
- or die("鎖定 $filename 文件失敗");
- //讀取文件內(nèi)容
- while ($line = fgets($fp, 1024)) {
- list($id, $name, $desc, $price) = explode('|', $line); //讀取每行數(shù)據(jù),數(shù)據(jù)以| 格開
- $id = trim($id); //去掉首尾特殊符號
- $master_products_list[$id] = array("name" => $name, //名稱
- "desc" => $desc, //說明
- "price" => $price); //單價(jià)
- }
- @fclose($fp) //關(guān)閉文件
- or die("關(guān)閉 $filename 文件失敗");
- }
- ?>
很簡單,我們只用了4個(gè)文件就實(shí)現(xiàn)用php 做好購物車功能,好了這只是一款簡單的php購物車代碼更復(fù)雜的需要考慮更多更好.
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