Ajax + PHP session制作购物车-侯体宗的博客

Ajax + PHP session制作购物车
php / 管理员发布于 7年前 201

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:/article/../jquery-1.11.2.min.js"></script><title>无标题文档</title></head><body><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="https:/article/main.php" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ;        }        else        {          alert("用户名或密码错误");        }      }    })  })</script></html>

2.登录处理页面loginchuli.php

<?phpsession_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

<?phpsession_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 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="https:/article/zhuxiao.php">注销</a></div><br /><div style="width:100%; height:600px">  <div id="left" style="width:20%; float:left">    <a href="https:/article/main.php"><div class="list">浏览商品</div></a>    <a href="https:/article/zhanghu.php"><div class="list">查看账户</div></a>    <a href="https:/article/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='https:/article/goumai.php?code={$v[0]}'>购买</a></td></tr>";    }    ?>        </table>  </div></div></body></html>

4.购买处理页面goumai.php

<?phpsession_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

<?phpsession_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

<?phpsession_start();?><!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><script src="https:/article/../../jquery-1.11.2.min.js"></script></head><body><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="https:/article/zhuxiao.php">注销</a></div><br /><div style="width:100%; height:600px">  <div id="left" style="width:20%; float:left">    <a href="https:/article/main.php"><div class="list">浏览商品</div></a>    <a href="https:/article/zhanghu.php"><div class="list">查看账户</div></a>    <a href="https:/article/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>{$v[1]}</td><td><a href='https:/article/shanchu.php?sy={$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></body></html>

7.购物车页面删除处理页面shanchu.php

<?phpsession_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");8.账户余额页面zhanghu.php<?phpsession_start();$uid = $_SESSION['uid'];?><!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 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="https:/article/zhuxiao.php">注销</a></div><br /><div style="width:100%; height:600px">  <div id="left" style="width:20%; float:left">    <a href="https:/article/main.php"><div class="list">浏览商品</div></a>    <a href="https:/article/zhanghu.php"><div class="list">查看账户</div></a>    <a href="https:/article/gouwuche.php"><div class="list">查看购物车</div></a>  </div>    <div id="right" style="width:80%; height:150px; float:left"><?php    include("../DBDA.class.php");    $db = new DBDA();    $sql = "select Account from login where UserName='{$uid}'";    $result = $db->strQuery($sql);        echo ("您的账户中还剩余".$result);  ?>  </div></div></body></html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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