Home Backend Development PHP Tutorial PHP and Ajax voting system_PHP tutorial

PHP and Ajax voting system_PHP tutorial

Jul 13, 2016 pm 05:47 PM
ajax content echo get php and vote system

 

<?php

$vote=$_GET['vote'];

//echo $vote;

$filename="poll.txt";

$content=file($filename); //把整个文件读入一个数组中

$arr=explode('||',$content[0]);

$yes=$arr[0];

$no=$arr[1];

if($vote==0){

$yes=$yes+1;

}

if($vote==1){

$no=$no+1;

}

$intpoll=$yes."||".$no;

$fp=fopen($filename,'w');

fputs($fp,$intpoll);

fclose($fp);

?> 

<h2>POLL:</h2> 

<table> 

<tr> 

<td>Yes:</td> 

<td> 

<img src="poll.gif"

width='<?php echo(100*round($yes/($no+$yes),2)); ?>' 

height='20'> 

<?php echo(100*round($yes/($no+$yes),2)); ?>% 

</td> 

</tr> 

<tr> 

<td>No:</td> 

<td> 

<img src="poll.gif"

width='<?php echo(100*round($no/($no+$yes),2)); ?>' 

height='20'> 

<?php echo(100*round($no/($no+$yes),2)); ?>% 

</td> 

</tr> 

</table> 

//poll.js 

var xmlHttp 

function GetXmlHTTPObject(){ 

    var Object=null; 

    if (window.XMLHttpRequest) 

 { 

 Object=new XMLHttpRequest() 

 } 

else if (window.ActiveXObject) 

 { 

 Object=new ActiveXObject("Microsoft.XMLHTTP") 

 } 

    return Object; 

function statechang(){ 

    if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 

         document.getElementById("poll"). 

         innerHTML=xmlHttp.responseText; 

    } 

function getVote(int){ 

    xmlHttp=GetXmlHTTPObject() 

    if(xmlHttp==null){ 

        alert('错误!'); 

        return 

    } 

    var url="poll.php" 

url=url+"?vote="+int 

url=url+"&sid="+Math.random() 

xmlHttp.onreadystatechange= statechang 

xmlHttp.open("GET",url,true) 

xmlHttp.send(null) 

//poll.html 

<html>  

<head>  

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />  

<title>投票(POLL)</title>  

<script src="poll.js"></script>  

</head>  

<body>  

 

<div id="poll"> 

<h2>PHP AND AJAX POLL</h2> 

 

<form> 

Yes:  

<input type="radio" name="vote"

value="0" onclick="getVote(this.value)"> 

<br /> 

No:  

<input type="radio" name="vote"

value="1" onclick="getVote(this.value)"> 

</form> 

</div>

www.2cto.com

</body>

</html>

//There is also a poll.txt file

Excerpted from chaojie2009’s column

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/478510.htmlTechArticle?php $vote=$_GET[vote]; //echo $vote; $filename=poll.txt; $content=file($filename); //Read the entire file into an array $arr=explode(||,$content[0]); $yes=$arr[0]; $no=$arr[1 ];...
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article

Hot Article

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

CakePHP Date and Time

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

CakePHP File upload

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

CakePHP Routing

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

Discuss CakePHP

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

CakePHP Project Configuration

CakePHP Quick Guide CakePHP Quick Guide Sep 10, 2024 pm 05:27 PM

CakePHP Quick Guide

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

How To Set Up Visual Studio Code (VS Code) for PHP Development

See all articles