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
<?phprequire_once('connect.php'); //连接数据库$user = array('demo1','demo2','demo3','demo3','<de></de>mo4'); //模拟了几个用户?><!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" xml:lang="en"><head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /> <title>滚屏加载--无刷新动态加载数据技术的应用</title> <style type="text/css"> #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} </style> <script type="text/javascript" src="jquery-1.8.3.min.js"></script> //需要引入jquery</head><body> <p class="one" style="margin:20px">提示：使用滚动或拉动滚动条向下看。</p> <div id="container"> <?php $query=mysqli_query($link, "select * from say order by id desc limit 0,15"); while ($row=mysqli_fetch_array($query, MYSQLI_ASSOC)) { ?> <div class="single_item"> <div class="element_head"> <div class="date"><?php echo date('m-d H:i',$row['addtime']);?></div> <div class="author"><?php echo $user[$row['userid']];?></div> </div> <div class="content"><?php echo $row['content'];?></div> </div> <?php } ?> </div> <div class="nodata"></div></body><script type="text/javascript">$(function(){ var winH = $(window).height(); //页面可视区域高度 var i = 1;//设置当前页数 $(window).scroll(function () { var pageH = $(document.body).height(); var scrollT = $(window).scrollTop(); //滚动条top var aa = (pageH-winH-scrollT)/winH; if(aa<0.02){ $.getJSON("result.php",{page:i},function(json){ if(json){ var str = ""; $.each(json,function(index,array){ var str = "<div class=/"single_item/"><div class=/"element_head/">"; var str = str + "<div class=/"date/">"+array['date']+"</div>"; var str = str + "<div class=/"author/">"+array['author']+"</div>"; var str = str + "</div><div class=/"content/">"+array['content']+"</div></div>"; $("#container").append(str); }); i++; }else{ $(".nodata").show().html("别滚动了，已经到底了。。。"); return false; } }); } });});</script></html>
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