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php查詢(xún)操作實(shí)現(xiàn)投票功能

 更新時(shí)間:2016年05月09日 08:33:05   作者:陌上初薰  
這篇文章主要為大家詳細(xì)介紹了php查詢(xún)操作實(shí)現(xiàn)投票功能的具體代碼,具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了php查詢(xún)操作實(shí)現(xiàn)投票功能的代碼,供大家參考,具體內(nèi)容如下

題目:

解題方法匯總:

方法一:
1. 投票主頁(yè)面:

<!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>
<style>
#list
{
  width:400px;
  height:300px;}
#jieguo
{
  width:400px;
  height:300px;}
.x
{
   
  float:left;}
 
</style>
</head>
 
<body>
 
<form action="TouChuLi.php" method="post">
<?php
include ("DBDA.class.php");
$db=new DBDA();
//從調(diào)研題目表中找出題目代號(hào)和名稱(chēng)
$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>";
//從調(diào)研選項(xiàng)表中輸出選項(xiàng)內(nèi)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="查看結(jié)果" id="check" onclick="Showjieguo()">
</form>
</div>
 
<div id="jieguo" style="display:none">
<?php
//計(jì)算總?cè)藬?shù):
$sqlzs="select sum(numbers) from diaoyanxuanxiang where timudaihao='{$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>

2.處理投票頁(yè)面:

<?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的類(lèi)型
}
header ("location:TouPiao.php");
?>

3. 建立訪問(wèn)數(shù)據(jù)庫(kù)的類(lèi),封裝用于引用:

<?php
//執(zhí)行一個(gè)sql語(yǔ)句,返回相應(yīng)的結(jié)果
class DBDA
{
  public $host="localhost";//數(shù)據(jù)庫(kù)服務(wù)器地址
  public $uid="root";//數(shù)據(jù)庫(kù)用戶(hù)名
  public $password="";//數(shù)據(jù)庫(kù)密碼
  //執(zhí)行SQL語(yǔ)句的方法
  //參數(shù)里面:$sql代表要執(zhí)行的sql語(yǔ)句;$type是sql語(yǔ)句的類(lèi)型,0代表查詢(xún),1代表其他(增刪改);$db代表要操作的數(shù)據(jù)庫(kù)
  function Query($sql,$type=0,$db="mydb")
  {
    //造連接對(duì)象
    $dbconnect=new MySQLi($this->host,$this->uid,$this->password,$db);
    //判斷連接是否出錯(cuò)
    !mysqli_connect_error() or die("連接失敗!");
    //執(zhí)行sql語(yǔ)句
    $result=$dbconnect->query($sql);
    //判斷SQL語(yǔ)句類(lèi)型
    if($type==0)
    {
       //如果是查詢(xún)語(yǔ)句返回結(jié)果集的二維數(shù)組
      return $result->fetch_all();
      }
    else
    {
      //如果是其他語(yǔ)句,返回true或false
      return $result;
      }   
    }
     
  }

方法二:

1. 投票主頁(yè)面:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>投票</title>
<style>
.x
{
   
  float:left;}
 
</style>
</head>
 
<body>
 
<form action="TouChuLi.php" method="post">
<?php
include ("../DBDA.class.php");
$db=new DBDA();
//從調(diào)研題目表中找出題目代號(hào)和名稱(chēng)
$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>";
//從調(diào)研選項(xiàng)表中輸出選項(xiàng)內(nèi)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">
<a href="ChaKan.php"><input type="button" value="查看結(jié)果" id="check" ></a>
</form>
</body>
</html>

2. 處理投票頁(yè)面:

<?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的類(lèi)型
}
header ("location:TouPiao.php");
?>

3. 查看投票結(jié)果頁(yè)面:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>查看結(jié)果</title>
<style>
.x
{
  float:left;}
</style>
</head>
<body>
 
<?php
include ("../DBDA.class.php");
$db=new DBDA();
//從調(diào)研題目表中找出題目代號(hào)和名稱(chēng)
$sql="select * from diaoyantimu limit 0,1";
$arr=$db->query($sql);
$tmmc=$arr[0][1];
echo "<div><h2>{$tmmc}:</h2></div>";
//從調(diào)研選項(xiàng)表中輸出選項(xiàng)內(nèi)容:
$sqlxx="select * from diaoyanxuanxiang where timudaihao='{$arr[0][0]}'";
$arrxx=$db->query($sqlxx);
 
//計(jì)算總?cè)藬?shù):
$sqlzs="select sum(numbers) from diaoyanxuanxiang where timudaihao='{$arr[0][0]}'";
$zrs=$db->query($sqlzs);
 
foreach ($arrxx as $v)
{
   $name=$v[1];//調(diào)研項(xiàng)目名稱(chēng)
   $number=$v[2];//選擇該項(xiàng)的人數(shù)
   //判斷總?cè)藬?shù)是否為0
   if($zrs[0][0]==0)
   {
     $bfb = 0;
   }
   else
   {
     $bfb = ($number/$zrs[0][0])*100;//求百分比
   }
   
  $bfb=round($bfb,2); //取小數(shù)點(diǎn)后兩位
  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><br />
  </div><br />"; 
}
?>
<br />
<a href="TouPiao.php"><input type="button" value="返回"></a>
</body>
</html>

顯示結(jié)果:

以上就是本文的全部?jī)?nèi)容,希望對(duì)大家學(xué)習(xí)php程序設(shè)計(jì)有所幫助。

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