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php+ajax分页代码-网络编程

来源:[db:来源]标题:   代码    编辑:电脑技术全能网 时间:2019-09-21 06:24

原标题:php+ajax分页代码-网络编程
   <html><head><script language="javascript">function createXMLHttp(){ if(window.ActiveXObject){ return new ActiveXObject("Microsoft.XMLHttp"); } else if(window.XMLHttpRequest){ return new XMLHttpRequest(); }}function Pager(){ var that=this; this.link=function(url){ that.xmlHttp = createXMLHttp(); that.xmlHttp.onreadystatechange = that.receive; that.xmlHttp.open("GET", url, true); that.xmlHttp.send(null); } this.receive=function(){ if((that.xmlHttp.readyState == 4)){ if(that.xmlHttp.status == 200){ that.reaction(that.xmlHttp.responseXML); }else{ that.recover(); } } }}</script></head><body><div id='page_content'></div><div id='page_bar'></div><script language="javascript">var a = new Pager();var pages = 0;a.recover = function (){ go = function (u){ go = function (){ }; a.link(u); };};a.reaction = function (xml){ document.getElementById('page_content').innerHTML = xml.getElementsByTagName('content')[0].childNodes[0].nodeValue; if(xml.getElementsByTagName('count')[0].childNodes[0].nodeValue != pages){ s = '<table><tr>'; for(i = 1; i <= xml.getElementsByTagName('count')[0].childNodes[0].nodeValue; i++) { if(i == xml.getElementsByTagName('current')[0].childNodes[0].nodeValue) s += '<td><b>' + i + '</b></td>'; else s += '<td><a href="javascript:go(/'page.php?page=' + i + '/')">' + i + '</a></td>'; } s += '</tr></table>'; document.getElementById('page_bar').innerHTML = s; } a.recover();}a.link('page.php');</script></body></html>page.php代码.<?phpclass class_page{ private $record_count, $perpage; private $page_count, $page_current; function __construct($perpage, $record_count, $page_current) { $this->perpage = $perpage; $this->record_count = $record_count; $this->page_count = ($record_count == 0) ? 1 : ceil($record_count / $perpage); $this->page_current = ($page_current > $this->page_count) ? 1 : $page_current; } function __get($name) { switch($name) { case 'page_count': return $this->page_count; case 'page_current': return $this->page_current; case 'record_start': return ($this->page_current - 1) * $this->perpage; } }}header('Content-Type: text/xml; charset=gbk');$page = new class_page(20, 150, is_numeric($_GET['page']) ? $_GET['page'] : 1);echo '<?xml version="1.0"?>';echo '<page>';echo '<count>' . $page->page_count . '</count>';echo '<current>' . $page->page_current . '</current>';echo '<content>' . pow($page->page_current, 2) . '</content>';echo '</page>';?>

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