超强PHP分页类(转自PHPCHINA)
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Release: 2016-07-11 20:00:38
Original
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1![超强PHP分页类(转自PHPCHINA)](http://img.tuwenba.com/get/http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
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/**
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* filename: ext_page.class.php
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* @package:phpbean
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* @author :feifengxlq
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* @copyright :Copyright 2006 feifengxlq
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* @license:version 2.0
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* @create:2006-5-31
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* @modify:2006-6-1
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* @modify:feifengxlq 2006-11-4
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* description:超强分页类,四种分页模式,默认采用类似baidu,google的分页风格。
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* 2.0增加功能:支持自定义风格,自定义样式,同时支持PHP4和PHP5,
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* to see detail,please visit [url=http://www.phpobject.net/blog/read.php]http://www.phpobject.net/blog/read.php[/url]?
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* example:
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* 模式四种分页模式:
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require_once('../libs/classes/page.class.php');
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$page=new page(array('total'=>1000,'perpage'=>20));
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echo 'mode:1
'.$page->show();
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echo '
mode:2
'.$page->show(2);
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echo '
mode:3
'.$page->show(3);
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echo '
mode:4
'.$page->show(4);
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开启AJAX:
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$ajaxpage=new page(array('total'=>1000,'perpage'=>20,'ajax'=>'ajax_page','page_name'=>'test'));
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echo 'mode:1
'.$ajaxpage->show();
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采用继承自定义分页显示模式:
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demo:http://www.phpobject.net/blog
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*/
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class page
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{
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/**
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* config ,public
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*/
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var $page_name="PB_page";//page标签,用来控制url页。比如说xxx.php?PB_page=2中的PB_page
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var $next_page='>';//下一页
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var $pre_page='';//上一页
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var $first_page='First';//首页
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var $last_page='Last';//尾页
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var $pre_bar='';//上一分页条
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var $next_bar='>>';//下一分页条
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var $format_left='[';
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var $format_right=']';
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var $is_ajax=false;//是否支持AJAX分页模式
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/**
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* private
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*
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*/
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var $pagebarnum=10;//控制记录条的个数。
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var $totalpage=0;//总页数
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var $ajax_action_name='';//AJAX动作名
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var $nowindex=1;//当前页
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var $url="";//url地址头
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var $offset=0;
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/**
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* constructor构造函数
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*
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* @param array $array['total'],$array['perpage'],$array['nowindex'],$array['url'],$array['ajax']![超强PHP分页类(转自PHPCHINA)](http://img.tuwenba.com/get/http://www.cnblogs.com/Images/dot.gif)
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*/
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function page($array)
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{
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if(is_array($array)){
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if(!array_key_exists('total',$array))$this->error(__FUNCTION__,'need a param of total');
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$total=intval($array['total']);
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$perpage=(array_key_exists('perpage',$array))?intval($array['perpage']):10;
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$nowindex=(array_key_exists('nowindex',$array))?intval($array['nowindex']):'';
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$url=(array_key_exists('url',$array))?$array['url']:'';
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}else{
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$total=$array;
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$perpage=10;
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$nowindex='';
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$url='';
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}
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if((!is_int($total))||($total0))$this->error(__FUNCTION__,$total.' is not a positive integer!');
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if((!is_int($perpage))||($perpage0))$this->error(__FUNCTION__,$perpage.' is not a positive integer!');
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if(!empty($array['page_name']))$this->set('page_name',$array['page_name']);//设置pagename
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$this->_set_nowindex($nowindex);//设置当前页
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$this->_set_url($url);//设置链接地址
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$this->totalpage=ceil($total/$perpage);
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$this->offset=($this->nowindex-1)*$this->perpage;
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if(!empty($array['ajax']))$this->open_ajax($array['ajax']);//打开AJAX模式
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}
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/**
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* 设定类中指定变量名的值,如果改变量不属于这个类,将throw一个exception
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*
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* @param string $var
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* @param string $value
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*/
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function set($var,$value)
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{
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if(in_array($var,get_object_vars($this)))
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$this->$var=$value;
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else {
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$this->error(__FUNCTION__,$var." does not belong to PB_Page!");
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}
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}
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/**
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* 打开倒AJAX模式
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*
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* @param string $action 默认ajax触发的动作。
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*/
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function open_ajax($action)
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{
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$this->is_ajax=true;
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$this->ajax_action_name=$action;
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}
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/**
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* 获取显示"下一页"的代码
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*
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* @param string $style
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* @return string
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*/
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function next_page($style='')
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{
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if($this->nowindex$this->totalpage){
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return $this->_get_link($this->_get_url($this->nowindex+1),$this->next_page,$style);
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}
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return ''.$style.'">'.$this->next_page.'';
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}
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/**
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* 获取显示“上一页”的代码
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*
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* @param string $style
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* @return string
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*/
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function pre_page($style='')
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{
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if($this->nowindex>1){
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return $this->_get_link($this->_get_url($this->nowindex-1),$this->pre_page,$style);
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}
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return ''.$style.'">'.$this->pre_page.'';
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}
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/**
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* 获取显示“首页”的代码
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*
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* @return string
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*/
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function first_page($style='')
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{
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if($this->nowindex==1){
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return ''.$style.'">'.$this->first_page.'';
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}
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return $this->_get_link($this->_get_url(1),$this->first_page,$style);
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}
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/**
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* 获取显示“尾页”的代码
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*
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* @return string
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*/
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function last_page($style='')
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{
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if($this->nowindex==$this->totalpage){
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return ''.$style.'">'.$this->last_page.'';
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}
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return $this->_get_link($this->_get_url($this->totalpage),$this->last_page,$style);
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}
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function nowbar($style='',$nowindex_style='')
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{
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$plus=ceil($this->pagebarnum/2);
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if($this->pagebarnum-$plus+$this->nowindex>$this->totalpage)$plus=($this->pagebarnum-$this->totalpage+$this->nowindex);
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