PHP+ajax分页实例简析
author:一佰互联 2019-04-27   click:162

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>

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"])?intval($_GET["page"]):1;//查询条数$offset=($currentPage-1)*$num;//下一页$nexpage=($currentPage==$pagecount?0:$currentPage+1);//上一页$prepg=$currentPage-1;$url="ajax.php";//根据条数查询信息$strSQL="select * from article limit $offset,$num";$pagecontrol="当前第".$currentPage."页" ;$pagecontrol.="共".$pagecount."页";$pagecontrol.="<a href="javascript:dopage(" mce_href="javascript:dopage(""$url?page=1")>首 页</a> ";if($prepg) $pagecontrol.=" <a href="javascript:dopage(" mce_href="javascript:dopage(""$url?page=$prepg");>上一页</a> "; else $pagecontrol.=" 上一页 ";if($nexpage) $pagecontrol.="<a href="javascript:dopage(" mce_href="javascript:dopage(""$url?page=$nexpage");>下一页</a>"; else $pagecontrol.="下一页";$pagecontrol.="<a href="javascript:dopage(" mce_href="javascript:dopage(""$url?page=$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;

希望本文所述对大家PHP程序设计有所帮助。