<!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>投票</title>

</head>

<body>

<form action="TouChuLi.php" method="post">

<?php

include ("DBDA.class.php");

$db=new DBDA();

//从调研题目表中找出题目代号和名称

$sql="select * from diaoyantimu limit 0,1";

$arr=$db->query($sql);

$tmmc=$arr[0][1];

$tmdh=$arr[0][0];

echo "<div><h2>{$tmmc}:</h2></div>";

//从调研选项表中输出选项内容：

$sqlxx="select * from diaoyanxuanxiang where timudaihao='{$tmdh}'";

$arrxx=$db->query($sqlxx);

echo "<div id='list'>";

foreach ($arrxx as $v)

{

  echo "<div><input type='checkbox' value='{$v[0]}' name='xx[]'>{$v[1]}</div><br />";

}

?>

<input type="submit" value="提交">

<input type="button" value="查看结果" id="check" onclick="Showjieguo()">

</form>

</div>

<div id="jieguo" style="display:none">

<?php

//计算总人数：

$sqlzs="select sum(numbers) from diaoyanxuanxiang where timudaihao='{$tmdh}'";

$zrs=$db->query($sqlzs);

foreach ($arrxx as $v)

{

  $name=$v[1];

  $number=$v[2];

  if($zrs[0][0]==0)

   {

     $bfb = 0;

   }

   else

   {

     $bfb = ($number/$zrs[0][0])*100;

   }

  $bfb=round($bfb,2);

  echo "<div>

    <span class='x'>{$name} </span>

    <div class='x' style='width:200px; height:10px; background-color:#808080'>

    <div style='width:{$bfb}%; height:10px; background-color:#FF8040'> </div>

    </div>

    <span class='x'>{$number} </span>

    <span class='x'>{$bfb}% </span>

    </div>

    <br />

    ";

}

?>

<input type="button" value="返回" id="fanhui" onclick="Showfanhui()">

</div>

<script>

function Showjieguo()

{

  document.getElementById("list").style.display="none";

  document.getElementById("jieguo").style.display="block";

  }

function Showfanhui()

{

  document.getElementById("list").style.display="block";

  document.getElementById("jieguo").style.display="none";

  }

</script>

</body>

</html>

<?php

$arr=$_POST["xx"];

include ("../DBDA.class.php");

$db=new DBDA();

foreach($arr as $v)

{

  $sql = "update diaoyanxuanxiang set numbers = numbers+1 where ids = '{$v}'";

  $db->Query($sql,1);//1代表$sql的类型

}

header ("location:TouPiao.php");

?>

<?php

//执行一个sql语句，返回相应的结果

class DBDA

{

  public $host="localhost";//数据库服务器地址

  public $uid="root";//数据库用户名

  public $password="";//数据库密码

  //执行SQL语句的方法

  //参数里面：$sql代表要执行的sql语句；$type是sql语句的类型，0代表查询，1代表其他(增删改)；$db代表要操作的数据库

  function Query($sql,$type=0,$db="0710_info")

  {

    //造连接对象

    $dbconnect=new MySQLi($this->host,$this->uid,$this->password,$db);

    //判断连接是否出错

    !mysqli_connect_error() or die("连接失败！");

    //执行sql语句

    $result=$dbconnect->query($sql);

    //判断SQL语句类型

    if($type==0)

    {

       //如果是查询语句返回结果集的二维数组

      return $result->fetch_all();

      }

    else

    {

      //如果是其他语句，返回true或false

      return $result;

      }

    }

  }