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PHP 购物车

时间:2016-08-01 12:12:42      阅读:231      评论:0      收藏:0      [点我收藏+]

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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:&nbsp;&nbsp;<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";    
}

 

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 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 $zongjia?></div>
        <table width="100%" border="1" cellpadding="0" cellspacing="0">
            <tr height="35px" style="font-weight:bold; font-size:16px; text-align:center;">
                <td>代号</td>
                <td>名称</td>
                <td>价格</td>
                <td>产地</td>
                <td>库存</td>
                <td>操作</td>
            </tr>
            <?php
                foreach($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");

 

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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?></div>
</div>

 

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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");

 

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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");

 

PHP 购物车

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原文地址:http://www.cnblogs.com/yy01/p/5724890.html

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