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login.php
<style type="text/css"> .biao { padding-left:550px; padding-top:30px; } .div { padding-left:500px; padding-top:20px; } .but { padding-left:200px; } </style> </head> <body> <div class="biao"> <h1>登录页面</h1> </div> <div class="div"> <form action="loginchuli.php" method="post"> <div>用户名：<input type="text" name="uid"/></div><br /> <div>密码： <input type="password" name="pwd" /></div><br /> <div class="but"> <input type="submit" value="登录" /> </div> </form> </div>
loginchuli.php
<?php session_start(); include("../dbda.php"); $db=new DBDA(); $uid=$_POST["uid"]; $pwd=$_POST["pwd"]; //根据用户名查密码 $sql="select pwd from users where uid=‘{$uid}‘"; $mima=$db->strquery($sql);//用strquery直接返回密码 $sqlzt="select isok from users where uid=‘{$uid}‘"; $zt=$db->strquery($sqlzt); //判断用户的输入是否为空 if($uid!=""&&$pwd!="") { //判断输入是否正确 if($pwd==$mima) { if($zt==1) { //把用户名存到session里面 $_SESSION["uid"]=$uid; header("location:main.php"); } else { echo"还未审核通过"; } } else { echo"用户名或密码输入错误"; } } else { echo"用户名或密码不能为空"; }
main.php
<style type="text/css"> .z { width:100%; margin-top:80px;} .a { width:200px; float:left; margin-top:35px;} .a div { height:50px; width:200px; line-height:50px; text-align:center; vertical-align:middle;} .b { width:1000px; float:left;} .b1 { width:980px; height:35px; line-height:35px; vertical-align:middle; text-align:end; } a:link { color:#009; text-decoration:none;} a:visited { color:#009; text-decoration:none;} a:hover { color:#F30; text-decoration:none;} a:active { color:#F30; text-decoration:none;} </style> </head> <body> <?php session_start(); if(empty($_SESSION["uid"])) { header("location:login.php"); exit; } include("../dbda.php"); $db=new DBDA(); $sfruit="select * from fruit"; $afruit=$db->Query($sfruit); $gouwuche=array(); if(!empty($_SESSION["gwc"])) { $gouwuche=$_SESSION["gwc"]; } //商品数量 $shuliang=count($gouwuche); //总价 $zongjia=0; foreach($gouwuche as $v) { $sdanjia="select price from fruit where ids=‘{$v[0]}‘"; $danjia=$db->StrQuery($sdanjia); $zongjia=$zongjia+$danjia*$v[1]; } ?> <div class="z"> <div class="a"> <div><a href="main.php">浏览商品</a></div> <div><a href="zhanghu.php">查看账户</a></div> <div><a href="gouwuche.php">查看购物车</a></div> </div> <div class="b"> <div class="b1"> 购物车中有：<?php echo $shuliang?>件商品，总价格为：<?php echo $zongjia?>元 </div> <table width="100%" border="1" cellpadding="0" cellspacing="0"> <tr height="35px" style="font-weight:bold; font-size:16px; text-align:center;"> <td>代号</td> <td>名称</td> <td>价格</td> <td>产地</td> <td>库存</td> <td>操作</td> </tr> <?php foreach($afruit as $v) { echo"<tr height=‘25px‘; style=‘text-align:center;‘> <td>{$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>
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 { //已经点击过购买 $attr = $_SESSION["gwc"]; //判断该水果是否购买过 $count = 0;//定义一个变量购买的次数 foreach($attr as $v) { if($v[0]==$code) { $count++; } } //该水果在购物车中存在 if($count>0) { foreach($attr as $k=>$v) { if($v[0]==$code) { $attr[$k][1] = $v[1]+1; } } } //该水果在购物车中不存在 else { $anei = array($code,1); $attr[] = $anei; } //将修改的数组添加到session里面去 $_SESSION["gwc"] = $attr; } header("location:main.php");
zhanghu.php
<style type="text/css"> .z { width:100%; margin-top:100px;} .a { width:200px; float:left;} .a div { height:50px; width:200px; line-height:50px; text-align:center; vertical-align:middle;} .b { width:1000px; float:left;} a:link { color:#009; text-decoration:none;} a:visited { color:#009; text-decoration:none;} a:hover { color:#F30; text-decoration:none;} a:active { color:#F30; text-decoration:none;} </style> </head> <body> <?php session_start(); if(empty($_SESSION["uid"])) { header("location:login.php"); exit; } include("../DBDA.php"); $db = new DBDA(); $uid=$_SESSION["uid"]; $syue="select account from login where username=‘{$uid}‘"; $yue=$db->StrQuery($syue); ?> <div class="z"> <div class="a"> <div><a href="main.php">浏览商品</a></div> <div><a href="zhanghu.php">查看账户</a></div> <div><a href="gouwuche.php">查看购物车</a></div> </div> <div class="b"> 您的账户余额为：<?php echo $yue?>元 </div> </div>
gouwuche.php
<style type="text/css"> .z { width:100%; margin-top:100px;} .a { width:200px; float:left;} .a div { height:50px; width:200px; line-height:50px; text-align:center; vertical-align:middle;} .b { width:1000px; float:left;} .c { width:200px; height:50px; line-height:50px; vertical-align:middle; text-align:center; margin-left:800px;} a:link { color:#009; text-decoration:none;} a:visited { color:#009; text-decoration:none;} a:hover { color:#F30; text-decoration:none;} a:active { color:#F30; text-decoration:none;} </style> <script src="../jquery-1.11.2.min.js"></script> </head> <body> <?php session_start(); if(empty($_SESSION["uid"])) { header("location:login.php"); exit; } include("../DBDA.php"); $db = new DBDA(); $attr = array(); if(!empty($_SESSION["gwc"])) { $attr = $_SESSION["gwc"]; } ?> <div class="z"> <div class="a"> <div><a href="main.php">浏览商品</a></div> <div><a href="zhanghu.php">查看账户</a></div> <div><a href="gouwuche.php">查看购物车</a></div> </div> <div class="b"> <table width="100%" border="1" cellpadding="0" cellspacing="0"> <tr height="35px" style="font-weight:bold; font-size:16px; text-align:center;"> <td>名称</td> <td>单价</td> <td>数量</td> <td>操作</td> </tr> <?php foreach($attr as $v) { $smcdj = "select * from fruit where Ids=‘{$v[0]}‘"; $sginfo = $db->Query($smcdj); echo"<tr height=‘25px‘; style=‘text-align:center;‘> <td>{$sginfo[0][1]}</td> <td>{$sginfo[0][2]}</td> <td>{$v[1]}</td> <td><a href=‘shanchu.php?code={$v[0]}‘>删除</a></td> </tr>"; } ?> </table> <div class="c"> <a id="tj" href="tijiao.php">提交订单</a> <span id="xinxi"></span> </div> </div> </div> </body> <script type="text/javascript"> $(document).ready(function(e){ $("#tj").click(function(){ var bs=false; $.ajax({ async:false, url:"check.php", dataType:"TEXT", success: function(data){ if(data.trim()=="OK") { bs=true; } else { $("#xinxi").html(data); $("#xinxi").css("color","red"); } } }); return bs; }) }); </script>
shanchu.php
<?php session_start(); $attr = $_SESSION["gwc"]; $code = $_GET["code"]; foreach($attr as $k=>$v) { if($v[0]==$code) { //判断数量是否大于1 if($v[1]>1) { $attr[$k][1] = $attr[$k][1]-1; } else { unset($attr[$k]); } } } $_SESSION["gwc"] = $attr; header("location:gouwuche.php");
check.php
<?php session_start(); include("../dbda.php"); $db=new DBDA(); //取出购物车信息 $gwc=$_SESSION["gwc"]; //去除登陆者的用户名 $uid=$_SESSION["uid"]; //总价 $zongjia=0; foreach($gwc as $v) { $sdanjia="select price from fruit where ids=‘{$v[0]}‘"; $danjia=$db->StrQuery($sdanjia); $zongjia=$zongjia+$danjia*$v[1]; } //余额 $syue="select account from login where username=‘{$uid}‘"; $yue=$db->StrQuery($syue); if($yue>=$zongjia) { //判断库存 $dh=""; foreach($gwc as $v) { //根据水果代号：$v[0]取到库存数量 $skucun="select numbers from fruit where ids=‘{$v[0]}‘"; $kuncun=$db->StrQuery($skucun); if($kuncun<$v[1]) { $dh=$v[0]; break; } } if($dh=="") { echo"OK"; } else { $sname="select name from fruit where ids=‘{$dh}‘"; $name=$db->StrQuery($sname); echo "{$name}库存不足"; } } else { echo"余额不足"; }
tijiao.php
<?php session_start(); include("../dbda.php"); $db=new DBDA(); //取购物车信息 $gwc=$_SESSION["gwc"]; //取登陆者的用户名 $uid=$_SESSION["uid"]; //1.减余额 //总价 $zongjia=0; foreach($gwc as $v) { $sdanjia="select price from fruit where ids=‘{$v[0]}‘"; $danjia=$db->StrQuery($sdanjia); $zongjia=$zongjia+$danjia*$v[1]; } $sjian="update login set account=account-{$zongjia} where username=‘{$uid}‘"; $db->Query($sjian,0); //2.减库存 foreach($gwc as $v) { $skjian="update fruit set numbers=numbers-{$v[1]} where ids=‘{$v[0]}‘"; $db->Query($skjian,0); } //3.添加订单信息 $ordercode=date("YmdHis"); $time=date("Y-m-d H:i:s"); $sdingdan="insert into orders values(‘{$ordercode}‘,‘{$uid}‘,‘{$time}‘)"; $db->Query($sdingdan,0); //添加订单详情 foreach($gwc as $v) { $sxiangqing="insert into orderdetails values(‘‘,‘{$ordercode}‘,‘{$v[0]}‘,‘{$v[1]}‘) "; $db->Query($sxiangqing,0); } header("location:main.php");
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原文地址：http://www.cnblogs.com/yy01/p/5724890.html
