购物车
Posted 刘冉
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<div>用户名：<input type="text" id="uid" /></div> <div>密码：<input type="text" id="pwd" /></div> <input type="button" value="登录" id="btn" /> </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="main.php"; } else { alert("用户名或密码错误"); } } }); }) 登陆主页面 <?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!="") { $_SESSION["uid"]=$uid; echo "OK"; } else { echo "NO"; } 登陆处理页面 <?php session_start(); include("../DBDA.class.php"); $db = new DBDA(); ?> //开启session <style type="text/css"> .list{ width:100%; height:30px; margin-top:10px; text-align:center; line-height:30px; vertical-align:middle} </style> <div style="width:100%; height:100px; background-color:#6CC"> <h1 style="float:left">大苹果商城</h1> <a style="float:right; margin-top:40px" href="zhuxiao.php">注销</a> </div> <br /> <div style="width:100%; height:600px"> <div id="left" style="width:20%; float:left"> <a href="main.php"><div class="list">浏览商品</div></a> <a href="zhanghu.php"><div class="list">查看账户</div></a> <a href="gouwuche.php"><div class="list">查看购物车</div></a> </div> <div id="right" style="width:80%; float:left"> <?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 width="100%" border="1" 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> *//主页面 <?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"); 购买页面 <?php session_start(); ?> //开启session <style type="text/css"> .list{ width:100%; height:30px; margin-top:10px; text-align:center; line-height:30px; vertical-align:middle} </style> css样式 <div style="width:100%; height:100px; background-color:#6CC"> <h1 style="float:left">大苹果商城</h1> <a style="float:right; margin-top:40px" href="zhuxiao.php">注销</a> </div> <br /> <div style="width:100%; height:600px"> <div id="left" style="width:20%; float:left"> <a href="main.php"><div class="list">浏览商品</div></a> <a href="zhanghu.php"><div class="list">查看账户</div></a> <a href="gouwuche.php"><div class="list">查看购物车</div></a> </div> <div id="right" style="width:80%; float:left"> <table width="100%" border="1" cellpadding="0" cellspacing="0"> <tr> <td>商品名称</td> <td>商品单价</td> <td>购买数量</td> <td>操作</td> </tr> <?php include("../DBDA.class.php"); $db = new DBDA(); $attr=array(); if(!empty($_SESSION["gwc"])) { $attr = $_SESSION["gwc"]; } foreach($attr as $k=>$v) { $sql = "select name,price from fruit where ids=‘{$v[0]}‘"; $ashuiguo = $db->Query($sql); echo "<tr><td>{$ashuiguo[0][0]}</td><td>{$ashuiguo[0][1]}</td><td>{$v[1]}</td><td><a href=‘shanchu.php?sy={$k}‘>删除</a></td></tr>"; } ?> </table> <div id="tj">提交订单</div><div id="ts"></div> </div> </div> <script type="text/javascript"> $("#tj").click(function(){ $.ajax({ url:"dingdan.php", dataType:"TEXT", success: function(data){ if(data.trim()=="OK") { alert("购买成功"); } else if(data.trim()=="YEBUZU") { $("#ts").html("余额不足"); $("#ts").css("color","red"); } else { $("#ts").html(data); $("#ts").css("color","red"); } } }); }) </script> //购物车页面 <?php session_start(); $sy = $_GET["sy"]; $attr = $_SESSION["gwc"]; if($attr[$sy][1]>1) { $attr[$sy][1] = $attr[$sy][1]-1; } else { unset($attr[$sy]); $attr = array_values($attr); } $_SESSION["gwc"]=$attr; header("location:gouwuche.php"); //删除页面 <?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"; //订单页面 <script src="../../jquery-1.11.2.min.js"></script>
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