Home > php教程 > php手册 > php结合ajax实现赞、顶、踩功能实例

php结合ajax实现赞、顶、踩功能实例

WBOY
Release: 2016-06-13 09:35:10
Original
836 people have browsed it

php应用越来越多,也越来越广泛,为了增加网站的丰富多彩,从而出现了很多新的技术。ajax是现代网站中不能缺少的一项技术,他可以异步刷新数据,而实现很多效果,比如刷新验证码,微博中的赞功能,都是运用这个。

本次赞功能的效果图:

主页文件(index.php):

复制代码 代码如下:




 header("Content-type:text/html;charset=utf-8");
 include "finger_ajax.php";

 $sql = "select * from finger_ajax";
 $res = mysql_query($sql,$link);
 while($row = mysql_fetch_array($res)){
  echo "

".$row['title']." \r\nphp结合ajax实现赞、顶、踩功能实例赞一下(".$row['finger'].")

\r\n";
 }
?>

处理ajax请求及配置信息文件(finger_ajax.php):

复制代码 代码如下:


 /**"赞" 功能 响应ajax请求*/
 //配置
 $dbHost = "localhost";
 $dbUser = "root";
 $dbPass = "dddddd";
 $dbName = "test";
 $dbCharset = "utf8";

 $link = mysql_connect($dbHost,$dbUser,$dbPass) or die(mysql_error());
 mysql_query("set names ".$dbCharset);
 mysql_select_db($dbName);
 // End

 //接受对应的id
 if(!empty($_POST['id'])){
  $id = $_POST['id'];
  //“赞”加1
  $sql = "update finger_ajax set finger=finger+1 where id=$id;";
  if(mysql_query($sql,$link)){
   echo "ok";
  }else{
   echo "failed";
  }
 }
?>


js文件(finger_ajax.js):

复制代码 代码如下:


//赞 js
function finger(topic_id){
 $.post("finger_ajax.php", { "id": topic_id },
   function(data){
     if(data=="ok"){
    alert("感谢您的支持!");
   }else{
    alert("对不起,失败了!");
   }
   }, "text"); 
  //获取当前“赞”的次数并加1
  var finger = parseInt($(".finger"+topic_id).html())+1;
  //更新“赞”的次数
  $(".finger"+topic_id).html(finger);
}


数据库代码(finger_ajax.sql):

复制代码 代码如下:


DROP TABLE IF EXISTS `finger_ajax`;
CREATE TABLE `finger_ajax` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(50) NOT NULL DEFAULT '',
  `finger` int(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of finger_ajax
-- ----------------------------
INSERT INTO `finger_ajax` VALUES ('1', '今天天气还不错哦!去做点什么好呢?', '10');
INSERT INTO `finger_ajax` VALUES ('2', '欢迎来到 www.jb51.net,国庆将至,祝大家国庆节快乐!!', '3');

Related labels:
source:php.cn
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
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template