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例子 投票系统

2024-08-19 03:56:55   222人阅读

1.建立数据库

 

表1：DiaoYanTiMu

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表2：DiaoYanXuanXiang

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2.页面

 页面1：投票首页

<!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">
#fanhui{ display:none}
</style>
</head>

<body>
<form action="tpchuli.php" method="post">

<?php

$db = new  MySQLi("localhost","root","123","mydb");

$sql = "select * from diaoyantimu";

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

$attr = $result->fetch_all();

foreach($attr as $v)
{
    echo "<div>{$v[1]}</div>";
    
    $sxx = "select * from diaoyanxuanxiang where timudaihao=‘{$v[0]}‘";
    
    $rxx = $db->query($sxx);    
    $axx = $rxx->fetch_all();
    
    $bs = 0;
    if(!empty($_GET["a"]))
    {
        $bs = $_GET["a"];
    }
    
    $s = $bs==1?"none":"block";
    
    echo "<div id=‘toupiao‘ style=‘display:{$s}‘>";
    foreach($axx as $v1)
    {
        echo "<div><input type=‘checkbox‘ name=‘tp[]‘ value=http://www.mamicode.com/‘{$v1[0]}‘ />{$v1[1]}
"; } echo "</div>"; $s1 = $bs==0?"none":"block"; //显示投票结果 echo "<div id=‘jieguo‘ style=‘display:{$s1}‘>"; foreach($axx as $v2) { $v2[2]; //当前选项的人数 //求总人数 $szrs = "select sum(numbers) from diaoyanxuanxiang where timudaihao=‘{$v[0]}‘"; $rzrs = $db->query($szrs); $azrs = $rzrs->fetch_row(); $azrs[0]; //总人数 $bfb = ($v2[2]/$azrs[0])*100; echo "<div>{$v2[1]}<div style=‘width:100px; height:10px; border:1px solid black;‘><div style=‘width:{$bfb}%; height:10px; background-color:red‘></div></div>{$v2[2]} {$bfb}%</div>"; } echo "</div>"; } ?> <input type="submit" value="投票" /> <input type="button" id="jg" value="查看结果" onclick="showjg()" /> <input type="button" id="fanhui" value="返回" onclick="showtp()" /> </form> </body> <script type="text/javascript"> function showjg() { document.getElementById("jieguo").style.display="block"; document.getElementById("toupiao").style.display="none"; document.getElementById("jg").style.display="none"; document.getElementById("fanhui").style.display="block"; } function showtp() { document.getElementById("jieguo").style.display="none"; document.getElementById("toupiao").style.display="block"; document.getElementById("jg").style.display="block"; document.getElementById("fanhui").style.display="none"; } </script> </html>

 

页面2：处理页面

<?php
$attr = $_POST["tp"];

$str = implode("‘,‘",$attr);

$sql = "update diaoyanxuanxiang set numbers = numbers+1 where ids in(‘{$str}‘)";

$db = new MySQLi("localhost","root","123","mydb");
$db->query($sql);

header("location:toupiao.php?a=1");

 

例子 投票系统


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