PHP+jQuery实现滚屏无刷新动态加载数据功能详解

本文实例讲述了PHP+jQuery实现滚屏无刷新动态加载数据功能。分享给大家供大家参考，具体如下：

index.php

mo4'); //模拟了几个用户
?>



  
  
  
    #container{margin:10px auto;width: 660px; border: 1px solid #999;}
    .single_item{padding: 20px; border-bottom: 1px dotted #d3d3d3;}
    .author{position: absolute; left: 0px; font-weight:bold; color:#39f}
    .date{position: absolute; right: 0px; color:#999}
    .content{line-height:20px; word-break: break-all;}
    .element_head{width: 100%; position: relative; height: 20px;}
    .nodata{display:none; height:32px; line-height:32px; text-align:center; color:#999; font-size:14px}
  
    //需要引入jquery


  
提示：使用滚动或拉动滚动条向下看。
  
    
    
      
  
  


      
    
    
  

ajax_demo.sql

-- phpMyAdmin SQL Dump
-- version 3.5.2.2
-- http://www.phpmyadmin.net
--
-- 主机: localhost
-- 生成日期: 2015 年 01 月 18 日 15:56
-- 服务器版本: 5.1.46-community
-- PHP 版本: 5.2.13
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";
;
;
;
;
--
-- 数据库: `demo`
--
-- --------------------------------------------------------
--
-- 表的结构 `say`
--
CREATE TABLE IF NOT EXISTS `say` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `userid` int(11) NOT NULL DEFAULT '0',
 `content` varchar(200) NOT NULL,
 `addtime` int(10) NOT NULL,
 PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=63 ;
--
-- 转存表中的数据 `say`
--
INSERT INTO `say` (`id`, `userid`, `content`, `addtime`) VALUES
(1, 0, '爱爱爱', 1421332482),
(2, 1, '爱爱爱', 1421332482),
(3, 0, '爱爱爱', 1421332482),
(4, 1, '爱爱爱', 1421332482),
(5, 0, '爱爱爱', 1421332482),
(6, 0, '爱爱爱', 1421332482),
(7, 0, '爱爱爱', 1421332482),
(8, 2, '爱爱爱', 1421332482),
(9, 0, '爱爱爱', 1421332482),
(10, 0, '爱爱爱', 1421332482),
(11, 0, '爱爱爱', 1421332482),
(12, 0, '爱爱爱', 1421332482),
(13, 0, '爱爱爱', 1421332482),
(14, 0, '爱爱爱', 1421332482),
(15, 0, '爱爱爱', 1421332482),
(16, 0, '爱爱爱', 1421332482),
(17, 0, '爱爱爱', 1421332482),
(18, 0, '爱爱爱', 1421332482),
(19, 0, '爱爱爱', 1421332482),
(20, 0, '爱爱爱', 1421332482),
(21, 0, '爱爱爱', 1421332482),
(22, 0, '爱爱爱', 1421332482),
(23, 0, '爱爱爱', 1421332482),
(24, 0, '爱爱爱', 1421332482),
(25, 0, '爱爱爱', 1421332482),
(26, 0, '2222', 1421333156),
(27, 0, '2222', 1421333159),
(28, 0, '2222', 1421333161),
(29, 0, '2222', 1421333162),
(30, 0, '2222', 1421333164),
(31, 0, '2222', 1421333165),
(32, 0, '2222', 1421333167),
(33, 0, '2222', 1421333168),
(34, 0, '2222', 1421333169),
(35, 0, '2222', 1421333170),
(36, 0, '2222', 1421333172),
(37, 0, '2222', 1421333173),
(38, 0, '2222', 1421333175),
(39, 0, '2222', 1421333176),
(40, 0, '2222', 1421333177),
(41, 0, '2222', 1421333178),
(42, 0, '2222', 1421333179),
(43, 0, '2222', 1421333181),
(44, 0, '2222', 1421333182),
(45, 0, '2222', 1421333183),
(46, 0, '2222', 1421333184),
(47, 0, '2222', 1421333293),
(48, 0, '2222', 1421333295),
(49, 0, '2222', 1421333296),
(50, 0, '2222', 1421333297),
(51, 0, '2222', 1421333298),
(52, 0, '2222', 1421333299),
(53, 0, '2222', 1421333300),
(54, 0, '2222', 1421333302),
(55, 0, '2222', 1421333303),
(56, 0, '2222', 1421333304),
(57, 0, '2222', 1421333305),
(58, 0, '2222', 1421333306),
(59, 0, '2222', 1421333308),
(60, 0, '2222', 1421333309),
(61, 0, '2222', 1421333310),
(62, 0, '2222', 1421333311);
;
;
;

result.php  接收请求页面

$row['content'],
      'author'=>$user[$row['userid']],
      'date'=>date('m-d H:i',$row['addtime'])
    );
  }
}
if(!empty($arr)){
  echo json_encode($arr); //转换为json数据输出
}
//echo json_encode($arr); //转换为json数据输出
?>

connect.php  数据库配置文件

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希望本文所述对大家PHP程序设计有所帮助。