购物车网页代码，具体内容如下
1.登录界面login.php
<!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" /> <script src="https://www.jb51.net/jquery-1.11.2.min.js"></script> <title>无标题文档</title> </head> <body> <div>用户名：<input type="text" /></div> <div>密码：<input type="text" /></div> <input type="button" value="登录" /> </body> <script type="text/javascript"> $("#btn").click(function(){ var uid = $("#uid").val(); var pwd = $("#pwd").val(); $.ajax({ url:"loginchuli.php", data:{u:uid,p:pwd}, type:"POST", dataType:"TEXT", success: function(data){ if(data.trim()=="OK") { window.location.href="https://www.jb51.net/main.php" ; } else { alert("用户名或密码错误"); } } }) }) </script> </html>
2.登录处理页面loginchuli.php
<?php session_start(); include("../DBDA.class.php"); $db = new DBDA(); $uid = $_POST["u"]; $pwd = $_POST["p"]; $sql = "select password from login where username='{$uid}'"; $mm = $db->StrQuery($sql); if($mm==$pwd && $pwd!="") { $UserName = $_POST["uid"]; $_SESSION["uid"]=$uid; echo "OK"; } else { echo "NO"; }
3.主页面main.php
<?php session_start(); include("../DBDA.class.php"); $db = new DBDA(); ?> <!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>无标题文档</title><br /> <style type="text/css"> .list{ width:100%; height:30px; margin-top:10px; text-align:center; line-height:30px; vertical-align:middle} </style> </head> <body> <div> <h1>大苹果商城</h1> <a href="https://www.jb51.net/zhuxiao.php">注销</a> </div> <br /> <div> <div> <a href="https://www.jb51.net/main.php"><div>浏览商品</div></a> <a href="https://www.jb51.net/zhanghu.php"><div>查看账户</div></a> <a href="https://www.jb51.net/gouwuche.php"><div>查看购物车</div></a> </div> <div> <?php $agwc = array(); if(!empty($_SESSION["gwc"])) { $agwc = $_SESSION["gwc"]; } $zhonglei = count($agwc); $sum = 0; foreach($agwc as $v) { $sql = "select price from fruit where ids='{$v[0]}'"; $danjia = $db->StrQuery($sql); $sum = $sum +$danjia*$v[1]; } echo "<div>购物车中有:{$zhonglei}种商品，总价格为:{$sum}元.</div>"; ?> <table cellpadding="0" cellspacing="0"> <tr> <td>代号</td> <td>水果名称</td> <td>水果价格</td> <td>源产地</td> <td>库存量</td> <td>操作</td> </tr> <?php $sql = "select * from fruit"; $attr = $db->Query($sql); foreach($attr as $v) { echo "<tr><td>{$v[0]}</td> <td>{$v[1]}</td> <td>{$v[2]}</td> <td>{$v[3]}</td> <td>{$v[4]}</td> <td><a href='goumai.php?code={$v[0]}'>购买</a></td></tr>"; } ?> </table> </div> </div> </body> </html>
4.购买处理页面goumai.php
<?php session_start(); $code = $_GET["code"]; if(empty($_SESSION["gwc"])) { //第一次点击购买 $attr = array( array($code,1) ); $_SESSION["gwc"] = $attr; } else { //不是第一次点击购买 $attr = $_SESSION["gwc"]; $bs=0; foreach($attr as $k=>$v) { if($v[0]==$code) { $bs=1; $attr[$k][1] = $attr[$k][1]+1; } } //如果没有在数组里面出现 if($bs==0) { $shuzu = array($code,1); $attr[] = $shuzu; } $_SESSION["gwc"]=$attr; } header("location:main.php");
5.订单处理页面，计算选取水果的总价，和水果剩余量。dingdan.php
<?php session_start(); include("../DBDA.class.php"); $db = new DBDA(); $uid = $_SESSION["uid"]; $attr = array(); if(!empty($_SESSION["gwc"])) { $attr = $_SESSION["gwc"]; } //看下两个条件是否都满足 $bs = true; //判断余额是否满足 //根据用户名找余额 $syue = "select account from login where username='{$uid}'"; $yue = $db->StrQuery($syue); //根据购物车数组取总金额 $sum = 0; foreach($attr as $v) { $sql = "select price from fruit where ids='{$v[0]}'"; $danjia = $db->StrQuery($sql); $sum = $sum +$danjia*$v[1]; } if($yue<$sum) { $bs = false; echo "YEBUZU"; exit; } //判断库存是否满足 foreach($attr as $v) { $skucun = "select name,numbers from fruit where ids='{$v[0]}'"; $akucun = $db->Query($skucun); if($akucun[0][1]<$v[1]) { $bs = false; echo "{$akucun[0][0]}库存不足！"; exit; } } //添加订单，减库存，减余额 if($bs) { //减库存 foreach($attr as $v) { $sql = "update fruit set numbers = numbers-{$v[1]} where ids='{$v[0]}'"; $db->Query($sql,0); } //减余额 $jianyue="update login set account=account-{$sum} where username='{$uid}'"; $db->Query($jianyue,0); //添加订单 $dingdanhao = $uid+date("YmdHis"); $t = time(); $sorder = "insert into orders values('{$dingdanhao}','{$uid}','{$t}')"; $db->Query($sorder,0); foreach($attr as $v) { $sxq = "insert into orderdetails values('','{$dingdanhao}','{$v[0]}','{$v[1]}')"; $db->Query($sxq,0); } } echo "OK";
6.购物车页面