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PHP+ajax分页实例简析_PHP

May 28, 2016 pm 01:12 PM

ajax php Pagination

本文实例讲述了PHP+ajax分页实现方法。分享给大家供大家参考，具体如下：

HTML代码如下：

<html>
<head>
<meta http-equiv="Content-Language" content="en" />
<meta name="GENERATOR" content="PHPEclipse 1.0" />
<meta http-equiv="Content-Type" content="text/html; charset=GB2312" />
<title>title</title>
<mce:script type='text/javascript'><!--
 var http_request=false;
 function send_request(url){//初始化，指定处理函数，发送请求的函数
  http_request=false;
  //开始初始化XMLHttpRequest对象
  if(window.XMLHttpRequest){//Mozilla浏览器
   http_request=new XMLHttpRequest();
   if(http_request.overrideMimeType){//设置MIME类别
    http_request.overrideMimeType("text/xml");
   }
  }
  else if(window.ActiveXObject){//IE浏览器
   try{
   http_request=new ActiveXObject("Msxml2.XMLHttp");
   }catch(e){
   try{
   http_request=new ActiveXobject("Microsoft.XMLHttp");
   }catch(e){}
   }
  }
  if(!http_request){//异常，创建对象实例失败
   window.alert("创建XMLHttp对象失败！");
   return false;
  }
  http_request.open("GET",url,true);
  http_request.onreadystatechange=processrequest;
  //确定发送请求方式，URL，及是否同步执行下段代码
  http_request.send(null);
 }
 //处理返回信息的函数
 function processrequest(){
  if(http_request.readyState==4){//判断对象状态
   if(http_request.status==200){//信息已成功返回，开始处理信息
   document.getElementById('result').innerHTML=http_request.responseText;
   }
   else{
   //页面不正常
   alert("您所请求的页面不正常！");
   }
  }
 }
 function dopage(url)
 {
  document.getElementById('result').innerHTML="正在读取数据...";
  send_request(url);
 }
// --></mce:script>
</head>
<body bgcolor="#FFFFFF" text="#000000" link="#FF9966" vlink="#FF9966" alink="#FFCC99">
<div id='result'>
</div>
</body>
</html>

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php代码如下：

header("Content-type: text/html;charset=GBK");//
$link=mysql_connect('localhost','root','root');
mysql_select_db('test');
mysql_query("SET NAMES 'GBK'");
$num=5;//每页显示5条
$sql="select * from article ";
//总共有多少记录
$resultt=mysql_query($sql);
//获取数据库总记录数
$total=mysql_num_rows($result);
echo $total;
//总共有多少页
$pagecount=$total/$num;
//获取当前页
$currentPage=isset($_GET['page'])&#63;intval($_GET['page']):1;
//查询条数
$offset=($currentPage-1)*$num;
//下一页
$nexpage=($currentPage==$pagecount&#63;0:$currentPage+1);
//</a>"; else $pagecontrol.="下一页";
$pagecontrol.="<a href="javascript:dopage(" mce_href="javascript:dopage("'$url&#63;page=$pagecount')>尾 页</a>";
$result1=mysql_query($strSQL);
echo "<table border=1 width=100%>";
echo "<tr>";
echo "<td>编 号</td><td>标 题</td><td>新闻类型</td>";
echo "</tr>";
while($row=mysql_fetch_array($result1))
{
  echo "<tr>";
  echo "<td>$row[id]</td><td>$row[title]</td><td>$row[classname]</td>";
  echo "</tr>";
}
echo "</table>";
echo "<br/>";
echo $pagecontrol;

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希望本文所述对大家PHP程序设计有所帮助。

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