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php投票练习

时间:2017-02-28 13:40:40      阅读:190      评论:0      收藏:0      [点我收藏+]

标签:local   fetch   fan   表格   分享   title   box   function   date   

一、题目要求:建立如下两个数据库,实现投票和%的统计结果:

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、具体编写方法:

(1)、建立数据库:

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里面的蓝色背景的表格名称就是我们所需的表格!

表格内容如下:

表名:diaoyantimu

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表名:diaoyanxuanxiang

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(2)、封装类文件:

 

<?php
class DBDA
{
    public $fuwuqi="localhost";
    public $yonghuming="root";
    public $mima="root";
    
    public $dbconnect;
    
    function Query($sql,$type=1,$shujukuming="test")
    {
       
        $this->dbconnect = new MySQLi($this->fuwuqi,$this->yonghuming,$this->mima,$shujukuming);
        
        
        if(!mysqli_connect_error())
        {
           
            $result = $this->dbconnect->query($sql);
            
           
            if($type==1)
            {
              
               return $result->fetch_all();    
            }
            else
            {
                
               return $result;    
            }
        
        }
        else
        {
            return"连接失败";
            
        }
        
        
    }
    
}

?>

 

(3)、投票页面(shouye.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" />
<title>无标题文档</title>

<style type="text/css">
.x
{
    float:left;
}
#top
{
    width:500px;
    height:200px;
}
#bottom
{
    width:500px;
    height:200px;
    display:none;
}
#fanhui
{
    display:none;
}
</style>



</head>
<body>
<form action="chuli.php" method="post">
<?php
include("DBDA.class.php");
$db=new DBDA;
$stm="select * from diaoyantimu limit 0,1";
$atm = $db->Query($stm);

echo "<div>题目名称:{$atm[0][1]}</div>";
$sxx="select * from diaoyanxuanxiang where timudaihao=‘{$atm[0][0]}‘";
$axx=$db->Query($sxx);

echo "<div id=‘top‘>";

foreach($axx as $v)
{
echo "<div><input type=‘checkbox‘ value=‘{$v[0]}‘ name=‘xx[]‘/>{$v[1]}</div>";    
}

echo "</div>";

?>

<div id="bottom">
<?php

$sum="select sum(Numbers) from diaoyanxuanxiang where timudaihao=‘{$atm[0][0]}‘";
$asum=$db->Query($sum);
$total=$asum[0][0];


foreach($axx as $v)
{
    $bfb=($v[2]/$total)*100;
    
  echo "<div><span class=‘x‘>{$v[1]}</span>
  
  <div class=‘x‘ style=‘border:1px solid blue;width:120px; height:12px‘>
  
 <div style=‘background-color:red;height:12px;width:{$bfb}%‘></div>
  
  </div>

  
  <span class=‘x‘>&nbsp;{$v[2]}&nbsp;</span>
    <span class=‘x‘>{$bfb}%</span>
  </div>
  <div style=‘clear:both‘></div>";
}
?>

</div>
 
<div id="anniu">
<input type="submit" value="提交"/>
<input type="button" value="查看" onclick="ShowResult()"/>
</div>
<div id="fanhui"><input type="button" value="返回" onclick="Show()" /></div>

</form>

</body>

<script type="text/javascript">
function ShowResult()
{
    document.getElementById("top").style.display="none";
    document.getElementById("bottom").style.display="block";
    document.getElementById("fanhui").style.display="block";
    document.getElementById("anniu").style.display="none";
}
function Show()
{
    document.getElementById("top").style.display="block";
    document.getElementById("bottom").style.display="none";
    document.getElementById("fanhui").style.display="none";
    document.getElementById("anniu").style.display="block";
}

</script>

</html>

(4)、投票处理页面(chuli.php):

<?php
$ids = $_POST["xx"];
include("DBDA.class.php");
$db = new DBDA();

foreach($ids as $v)
{
    $sql = "update diaoyanxuanxiang set Numbers = Numbers+1 where Ids=‘{$v}‘";
    $db->Query($sql,0);
}

header("location:shouye.php");

显示结果如下:

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php投票练习

标签:local   fetch   fan   表格   分享   title   box   function   date   

原文地址:http://www.cnblogs.com/axj1993/p/6478192.html

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