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【PHP】 PHP完美分页类
作者:Hardy / 发布于2015/10/13/ 370

	<?php
	
	class Page{
	 private $total; //数据表中总记录数
	 private $listrows; //每页显示行数
	 private $limit;
	 private $uri; //自动获取url请求地址
	 private $pageNum; //总页数
	 private $config = array('header'=>'条记录','prev'=>'上一页','next'=>'下一页','first'=>'首页','last'=>'尾页');
	
	 public function __construct($total,$listrows=10,$pa=""){
	 $this->total = $total;
	 $this->listrows = $listrows;
	 $this->uri = $this->getUri($pa);
	 $this->page = !empty($_GET['page']) ? $_GET['page']:1 ;
	 $this->pageNum = ceil($this->total/$this->listrows);
	 $this->limit = $this->setLimit();
	 }
	
	 private function setLimit(){
	 return "limit ".($this->page-1)*$this->listrows.','.$this->listrows;
	 }
	
	 public function getUri($pa){
	 $url = $_SERVER['REQUEST_URI'].(strpos($_SERVER['REQUEST_URI'],'?')?'':"?").$pa;
	 $parse = parse_url($url); //返回一个数组，数组有元素query和path
	 if(isset($parse['query'])){
	 parse_str($parse['query'],$params); //将query中的参数解析到$params，为数组
	 unset($params['page']);
	 $url = $parse['path'].'?'.http_build_query($params); //按照指定的参数生成一个请求字符串
	 }
	 return $url;
	 }
	
	 //limit为私有属性，通过这个魔术方法使limit变得可用
	 private function __get($args){
	 if($args=="limit"){
	 return $this->limit;
	 }else{
	 return null;
	 }
	 }
	
	 private function first(){
	 if($this->page==1){
	 $html.='';
	 }else{
	 $html.="&nbsp;<a href='{$this->uri}&page=1'>{$this->config['first']}</a>&nbsp;";
	 }
	 return $html;
	 }
	
	 private function prev(){
	 if($this->page==1){
	 $html.='';
	 }else{
	 $html.="&nbsp;<a href='{$this->uri}&page=".($this->page-1)."'>{$this->config['prev']}</a>&nbsp;";
	 }
	 return $html;
	 }
	
	 private function pagelist(){
	 $linkPage='';
	 //每边显示inum个页码
	 $inum = 3;
	 //左边的页码
	 for($i=$inum;$i>=1;$i--){
	 $page = $this->page-$i;
	 if($page<1){
	 continue;
	 }else{
	 $linkPage.="&nbsp;<a href='{$this->uri}&page={$page}'>{$page}</a>&nbsp;";
	 }
	 }
	 //当前页码
	 $linkPage.="&nbsp;{$this->page}&nbsp;";
	 //右边页码
	 for($i=1;$i<=$inum;$i++){
	 $page = $this->page+$i;
	 if($page>$this->pageNum){
	 break;
	 }else{
	 $linkPage.="&nbsp;<a href='{$this->uri}&page={$page}'>{$page}</a>&nbsp;";
	 }
	 }
	 return $linkPage;
	 }
	
	 private function next(){
	 if($this->page==$this->pageNum){
	 $html.='';
	 }else{
	 $html.="&nbsp;<a href='{$this->uri}&page=".($this->page+1)."'>{$this->config['next']}</a>&nbsp;";
	 }
	 return $html;
	 }
	
	 private function last(){
	 if($this->page==$this->pageNum){
	 $html.='';
	 }else{
	 $html.="&nbsp;<a href='{$this->uri}&page={$this->pageNum}'>{$this->config['last']}</a>&nbsp;";
	 }
	 return $html;
	 }
	
	 private function goPage(){
	 return '&nbsp;&nbsp;
	 <input id="in" type="text" onkeydown="javascript:if(event.keyCode==13){
	 var page=(this.value>'.$this->pageNum.')?'.$this->pageNum.':this.value; location=\''.$this->uri.'&page=\'+page+\'\' }"
	 value="'.$this->page.'" style="width:25px" >
	 <input type="button" value="GO" onclick="javascript:var
	 page=(document.getElementById(\'in\').value>'.$this->pageNum.')?'.$this->pageNum.':document.getElementById(\'in\').value;
	 location=\''.$this->uri.'&page=\'+page+\'\' ">&nbsp;&nbsp;';
	 }
	
	 //*可见的成员方法
	 function fpage($arr=array(0,1,2,3,4,5,6,7)){
	 $html[0]="&nbsp;共有<b>{$this->total}</b>{$this->config['header']}&nbsp;";
	 $html[1]="&nbsp;{$this->page}/{$this->pageNum}页&nbsp;";
	 $html[2]=$this->first();
	 $html[3]=$this->prev();
	 $html[4]=$this->pageList();
	 $html[5]=$this->next();
	 $html[6]=$this->last();
	 $html[7]=$this->goPage();
	 $fpage='';
	 foreach($arr as $index){
	 $fpage.=$html[$index];
	 }
	 return $fpage;
	 }
	
	
	
	
	
	
	}
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　完美分页　　分页　
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