<p> 看到论坛上有人求百度分页类，所以把几周前的分页类贴出来。</p><p> 2.0相对1.0修正如下：</p><p> 1、支持PHP4和PHP5</p><p> 2、增加了对ajax分页的功能</p><p> 3、优化了程序整体结构</p><p> 4、增加了自定义风格的功能</p><p> 代码如下：</p><p> PHP代码:</p><code><?<br />/**<br />*filename:ext_page.class.php<br />*@package:phpbean<br />*@author:feifengxlq<feifengxlq#gmail.com><[url=http://www.phpobject.net/]http://www.phpobject.net/[/url]><br />*@copyright:Copyright2006feifengxlq<br />*@license:version2.0<br />*@create:2006-5-31<br />*@modify:2006-6-1<br />*@modify:feifengxlq2006-11-4<br />*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。<br />*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,<br />*toseedetail,pleasevisit[url=http://www.phpobject.net/blog/read.php]http://www.phpobject.net/blog/read.php[/url]?<br />*example:<br />*模式四种分页模式：<br /> require_once('../libs/classes/page.class.php');<br /> $page=newpage(array('total'=>1000,'perpage'=>20));<br /> echo'mode:1<br>'.$page->show();<br /> echo'<hr>mode:2<br>'.$page->show(2);<br /> echo'<hr>mode:3<br>'.$page->show(3);<br /> echo'<hr>mode:4<br>'.$page->show(4);<br /> 开启AJAX：<br /> $ajaxpage=newpage(array('total'=>1000,'perpage'=>20,'ajax'=>'ajax_page','page_name'=>'test'));<br /> echo'mode:1<br>'.$ajaxpage->show();<br /> 采用继承自定义分页显示模式：<br /> demo:http://www.phpobject.net/blog<br />*/<br />classpage<br />{<br />/**<br /> *config,public<br /> */<br />var$page_name="PB_page";//page标签，用来控制url页。比如说xxx.php?PB_page=2中的PB_page<br />var$next_page='>';//下一页<br />var$pre_page='<';//上一页<br />var$first_page='First';//首页<br />var$last_page='Last';//尾页<br />var$pre_bar='<<';//上一分页条<br />var$next_bar='>>';//下一分页条<br />var$format_left='[';<br />var$format_right=']';<br />var$is_ajax=false;//是否支持AJAX分页模式<br />/**<br /> *private<br /> *<br /> */<br />var$pagebarnum=10;//控制记录条的个数。<br />var$totalpage=0;//总页数<br />var$ajax_action_name='';//AJAX动作名<br />var$nowindex=1;//当前页<br />var$url="";//url地址头<br />var$offset=0;<br />/**<br /> *constructor构造函数<br /> *<br /> *@paramarray$array['total'],$array['perpage'],$array['nowindex'],$array['url'],$array['ajax']...<br /> */<br />functionpage($array)<br />{<br /> if(is_array($array)){<br /> if(!array_key_exists('total',$array))$this->error(__FUNCTION__,'needaparamoftotal');<br /> $total=intval($array['total']);<br /> $perpage=(array_key_exists('perpage',$array))?intval($array['perpage']):10;<br /> $nowindex=(array_key_exists('nowindex',$array))?intval($array['nowindex']):'';<br /> $url=(array_key_exists('url',$array))?$array['url']:'';<br /> }else{<br /> $total=$array;<br /> $perpage=10;<br /> $nowindex='';<br /> $url='';<br /> }<br /> if((!is_int($total))||($total<0))$this->error(__FUNCTION__,$total.'isnotapositiveinteger!');<br /> if((!is_int($perpage))||($perpage<=0))$this->error(__FUNCTION__,$perpage.'isnotapositiveinteger!');<br /> if(!empty($array['page_name']))$this->set('page_name',$array['page_name']);//设置pagename<br /> $this->_set_nowindex($nowindex);//设置当前页<br /> $this->_set_url($url);//设置链接地址<br /> $this->totalpage=ceil($total/$perpage);<br /> $this->offset=($this->nowindex-1)*$this->perpage;<br /> if(!empty($array['ajax']))$this->open_ajax($array['ajax']);//打开AJAX模式<br />}<br />/**<br /> *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<br /> *<br /> *@paramstring$var<br /> *@paramstring$value<br /> */<br />functionset($var,$value)<br />{<br /> if(in_array($var,get_object_vars($this)))<br /> $this->$var=$value;<br /> else{<br /> $this->error(__FUNCTION__,$var."doesnotbelongtoPB_Page!");<br /> }<br /> <br />}<br />/**<br /> *打开倒AJAX模式<br /> *<br /> *@paramstring$action默认ajax触发的动作。<br /> */<br />functionopen_ajax($action)<br />{<br /> $this->is_ajax=true;<br /> $this->ajax_action_name=$action;<br />}<br />/**<br /> *获取显示"下一页"的代码<br /> *<br /> *@paramstring$style<br /> *@returnstring<br /> */<br />functionnext_page($style='')<br />{<br /> if($this->nowindex<$this->totalpage){<br /> return$this->_get_link($this->_get_url($this->nowindex+1),$this->next_page,$style);<br /> }<br /> return'<spanclass="'.$style.'">'.$this->next_page.'</span>';<br />}<br />/**<br /> *获取显示“上一页”的代码<br /> *<br /> *@paramstring$style<br /> *@returnstring<br /> */<br />functionpre_page($style='')<br />{<br /> if($this->nowindex>1){<br /> return$this->_get_link($this->_get_url($this->nowindex-1),$this->pre_page,$style);<br /> }<br /> return'<spanclass="'.$style.'">'.$this->pre_page.'</span>';<br />}<br />/**<br /> *获取显示“首页”的代码<br /> *<br /> *@returnstring<br /> */<br />functionfirst_page($style='')<br />{<br /> if($this->nowindex==1){<br /> return'<spanclass="'.$style.'">'.$this->first_page.'</span>';<br /> }<br /> return$this->_get_link($this->_get_url(1),$this->first_page,$style);<br />}<br />/**<br /> *获取显示“尾页”的代码<br /> *<br /> *@returnstring<br /> */<br />functionlast_page($style='')<br />{<br /> if($this->nowindex==$this->totalpage){<br /> return'<spanclass="'.$style.'">'.$this->last_page.'</span>';<br /> }<br /> return$this->_get_link($this->_get_url($this->totalpage),$this->last_page,$style);<br />}<br />functionnowbar($style='',$nowindex_style='')<br />{<br /> $plus=ceil($this->pagebarnum/2);<br /> if($this->pagebarnum-$plus+$this->nowindex>$this->totalpage)$plus=($this->pagebarnum-$this->totalpage+$this->nowindex);<br /> $begin=$this->nowindex-$plus+1;<br /> $begin=($begin>=1)?$begin:1;<br /> $return='';<br /> for($i=$begin;$i<$begin+$this->pagebarnum;$i++)<br /> {<br /> if($i<=$this->totalpage){<br /> if($i!=$this->nowindex)<br /> $return.=$this->_get_text($this->_get_link($this->_get_url($i),$i,$style));<br /> else<br /> $return.=$this->_get_text('<spanclass="'.$nowindex_style.'">'.$i.'</span>');<br /> }else{<br /> break;<br /> }<br /> $return.=" ";<br /> }<br /> unset($begin);<br /> return$return;<br />}<br />/**<br /> *获取显示跳转按钮的代码<br /> *<br /> *@returnstring<br /> */<br />functionselect()<br />{<br /> $return='<selectname="PB_Page_Select">';<br /> for($i=1;$i<=$this->totalpage;$i++)<br /> {<br /> if($i==$this->nowindex){<br /> $return.='<optionvalue="'.$i.'"selected>'.$i.'</option>';<br /> }else{<br /> $return.='<optionvalue="'.$i.'">'.$i.'</option>';<br /> }<br /> }<br /> unset($i);<br /> $return.='</select>';<br /> return$return;<br />}<br />/**<br /> *获取mysql语句中limit需要的值<br /> *<br /> *@returnstring<br /> */<br />functionoffset()<br />{<br /> return$this->offset;<br />}<br />/**<br /> *控制分页显示风格（你可以增加相应的风格）<br /> *<br /> *@paramint$mode<br /> *@returnstring<br /> */<br />functionshow($mode=1)<br />{<br /> switch($mode)<br /> {<br /> case'1':<br /> $this->next_page='下一页';<br /> $this->pre_page='上一页';<br /> return$this->pre_page().$this->nowbar().$this->next_page().'第'.$this->select().'页';<br /> break;<br /> case'2':<br /> $this->next_page='下一页';<br /> $this->pre_page='上一页';<br /> $this->first_page='首页';<br /> $this->last_page='尾页';<br /> return$this->first_page().$this->pre_page().'[第'.$this->nowindex.'页]'.$this->next_page().$this->last_page().'第'.$this->select().'页';<br /> break;<br /> case'3':<br /> $this->next_page='下一页';<br /> $this->pre_page='上一页';<br /> $this->first_page='首页';<br /> $this->last_page='尾页';<br /> return$this->first_page().$this->pre_page().$this->next_page().$this->last_page();<br /> break;<br /> case'4':<br /> $this->next_page='下一页';<br /> $this->pre_page='上一页';<br /> return$this->pre_page().$this->nowbar().$this->next_page();<br /> break;<br /> case'5':<br /> return$this->pre_bar().$this->pre_page().$this->nowbar().$this->next_page().$this->next_bar();<br /> break;<br /> }<br /> <br />}<br />/*----------------privatefunction(私有方法)-----------------------------------------------------------*/<br />/**<br /> *设置url头地址<br /> *@param:String$url<br /> *@returnboolean<br /> */<br />function_set_url($url="")<br />{<br /> if(!empty($url)){<br /> //手动设置<br /> $this->url=$url.((stristr($url,'?'))?'&':'?').$this->page_name."=";<br /> }else{<br /> //自动获取<br /> if(empty($_SERVER['QUERY_STRING'])){<br /> //不存在QUERY_STRING时<br /> $this->url=$_SERVER['REQUEST_URI']."?".$this->page_name."=";<br /> }else{<br /> //<br /> if(stristr($_SERVER['QUERY_STRING'],$this->page_name.'=')){<br /> //地址存在页面参数<br /> $this->url=str_replace($this->page_name.'='.$this->nowindex,'',$_SERVER['REQUEST_URI']);<br /> $last=$this->url[strlen($this->url)-1];<br /> if($last=='?'||$last=='&'){<br /> $this->url.=$this->page_name."=";<br /> }else{<br /> $this->url.='&'.$this->page_name."=";<br /> }<br /> }else{<br /> //<br /> $this->url=$_SERVER['REQUEST_URI'].'&'.$this->page_name.'=';<br /> }//endif <br /> }//endif<br /> }//endif<br />}<br />/**<br /> *设置当前页面<br /> *<br /> */<br />function_set_nowindex($nowindex)<br />{<br /> if(empty($nowindex)){<br /> //系统获取<br /> <br /> if(isset($_GET[$this->page_name])){<br /> $this->nowindex=intval($_GET[$this->page_name]);<br /> }<br /> }else{<br /> //手动设置<br /> $this->nowindex=intval($nowindex);<br /> }<br />}<br /> <br />/**<br /> *为指定的页面返回地址值<br /> *<br /> *@paramint$pageno<br /> *@returnstring$url<br /> */<br />function_get_url($pageno=1)<br />{<br /> return$this->url.$pageno;<br />}<br />/**<br /> *获取分页显示文字，比如说默认情况下_get_text('<ahref="">1</a>')将返回[<ahref="">1</a>]<br /> *<br /> *@paramString$str<br /> *@returnstring$url<br /> */<br />function_get_text($str)<br />{<br /> return$this->format_left.$str.$this->format_right;<br />}<br />/**<br /> *获取链接地址<br />*/<br />function_get_link($url,$text,$style=''){<br /> $style=(empty($style))?'':'class="'.$style.'"';<br /> if($this->is_ajax){<br /> //如果是使用AJAX模式<br /> return'<a'.$style.'href="javascript:'.$this->ajax_action_name.'(''.$url.'')">'.$text.'</a>';<br /> }else{<br /> return'<a'.$style.'href="'.$url.'">'.$text.'</a>';<br /> }<br />}<br />/**<br /> *出错处理方式<br />*/<br />functionerror($function,$errormsg)<br />{<br /> die('Errorinfile<b>'.__FILE__.'</b>,Function<b>'.$function.'()</b>:'.$errormsg);<br />}<br />}<br />?></code><p> 提供一个简单的演示demo</p>
<p> </p>
<p> PHP代码:</p><code><?<br />require_once('../libs/classes/page.class.php');<br />$page=newpage(array('total'=>1000,'perpage'=>20));<br />echo'mode:1<br>'.$page->show();<br />echo'<hr>mode:2<br>'.$page->show(2);<br />echo'<hr>mode:3<br>'.$page->show(3);<br />echo'<hr>mode:4<br>'.$page->show(4);<br />echo'<hr>开始AJAX模式:';<br />$ajaxpage=newpage(array('total'=>1000,'perpage'=>20,'ajax'=>'ajax_page','page_name'=>'test'));<br />echo'mode:1<br>'.$ajaxpage->show();<br />?></code><p> 效果图</p><p> <img src="/content/uploadfile/200805/2008053117354433.jpg" onclick="get_larger(this)" /></p></p>