www.gusucode.com > 74cms PHP骑士人才系统 v3.5.1源码程序 > code/upload/include/page.class.php
<?php
/*
* 74cms 分页
* ============================================================================
* 版权所有: 骑士网络，并保留所有权利。
* 网站地址: http://www.74cms.com；
* ----------------------------------------------------------------------------
* 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和
* 使用；不允许对程序代码以任何形式任何目的的再发布。
* ============================================================================
*/
if(!defined('IN_QISHI'))
{
die('Access Denied!');
}
class page{
var $page_name="page";
var $next_page='下一页';
var $pre_page='上一页';
var $first_page='首页';
var $last_page='尾页';
var $pre_bar='<<';
var $next_bar='>>';
var $format_left='';
var $format_right='';
var $pagebarnum=10;
var $totalpage=0;
var $nowindex=1;
var $url="";
var $offset=0;
function page($array)
{
if(is_array($array))
{
if(!array_key_exists('total',$array))$this->error(__FUNCTION__,'need a param of total');
$total=intval($array['total']);
$perpage=(array_key_exists('perpage',$array))?intval($array['perpage']):10;
$nowindex=(array_key_exists('nowindex',$array))?intval($array['nowindex']):'';
$url=(array_key_exists('url',$array))?$array['url']:'';
$alias = (array_key_exists('alias', $array)) ? $array['alias'] : '';
$getarray = (array_key_exists('getarray', $array)) ? $array['getarray'] : '';
}
else
{
$total=$array;
$perpage=10;
$nowindex='1';
$url='';
$alias = '';
$getarray = '';
}
if((!is_int($total))||($total<0))$this->error(__FUNCTION__,$total.' is not a positive integer!');
if((!is_int($perpage))||($perpage<=0))$this->error(__FUNCTION__,$perpage.' is not a positive integer!');
if(!empty($array['page_name']))$this->set('page_name',$array['page_name']);
$this->_set_nowindex($nowindex);
$this->_set_url($url);
$this->totalpage=ceil($total/$perpage);
$this->offset=($this->nowindex-1)*$perpage;
$this->alias = $alias;
$this->getarray = $getarray;
}
function set($var,$value)
{
if(in_array($var,get_object_vars($this)))
$this->$var=$value;
else {
$this->error(__FUNCTION__,$var." does not belong to PB_Page!");
}
}
function next_page($style=''){
if($this->nowindex<$this->totalpage){
return $this->_get_link($this->_get_url($this->nowindex+1),$this->next_page,$style);
}
return '<li><a class="'.$style.'">'.$this->next_page.'</a></li>';
}
function pre_page($style=''){
if($this->nowindex>1){
return $this->_get_link($this->_get_url($this->nowindex-1),$this->pre_page,$style);
}
return '<li><a class="'.$style.'">'.$this->pre_page.'</a></li>';
}
function first_page($style=''){
if($this->nowindex==1){
return '<li><a class="'.$style.'">'.$this->first_page.'</a></li>';
}
return $this->_get_link($this->_get_url(1),$this->first_page,$style);
}
function last_page($style=''){
if($this->nowindex==$this->totalpage||$this->totalpage==0){
return '<li><a class="'.$style.'">'.$this->last_page.'</a></li>';
}
return $this->_get_link($this->_get_url($this->totalpage),$this->last_page,$style);
}
function nowbar($style='',$nowindex_style='')
{
$plus=ceil($this->pagebarnum/2);
if($this->pagebarnum-$plus+$this->nowindex>$this->totalpage)$plus=($this->pagebarnum-$this->totalpage+$this->nowindex);
$begin=$this->nowindex-$plus+1;
$begin=($begin>=1)?$begin:1;
$return='';
for($i=$begin;$i<$begin+$this->pagebarnum;$i++)
{
if($i<=$this->totalpage){
if($i!=$this->nowindex)
$return.=$this->_get_text($this->_get_link($this->_get_url($i),$i,$style));
else
$return.=$this->_get_text('<li><a class="'.$nowindex_style.'">'.$i.'</a></li>');
}else{
break;
}
$return.="\n";
}
unset($begin);
return $return;
}
/**
* 获取显示跳转按钮的代码
*
* @return string
*/
function select()
{
$return='<select name="PB_Page_Select">';
for($i=1;$i<=$this->totalpage;$i++)
{
if($i==$this->nowindex){
$return.='<option value="'.$i.'" selected>'.$i.'</option>';
}else{
$return.='<option value="'.$i.'">'.$i.'</option>';
}
}
unset($i);
$return.='</select>';
return $return;
}
/**
* 获取mysql 语句中limit需要的值
*
* @return string
*/
function offset()
{
return $this->offset;
}
/**
* 控制分页显示风格（你可以增加相应的风格）
*
* @param int $mode
* @return string
*/
function show($mode=1)
{
switch ($mode)
{
case '1':
$this->next_page='下一页';
$this->pre_page='上一页';
return $this->pre_page().$this->nowbar().$this->next_page().'第'.$this->select().'页';
break;
case '2':
$this->next_page='下一页';
$this->pre_page='上一页';
$this->first_page='首页';
$this->last_page='尾页';
return $this->first_page().$this->pre_page().'[第'.$this->nowindex.'页]'.$this->next_page().$this->last_page().'第'.$this->select().'页';
break;
case '3':
$this->next_page='下一页';
$this->pre_page='上一页';
$this->first_page='首页';
$this->last_page='尾页';
return $this->first_page()."".$this->pre_page()."".$this->nowbar("","select")."".$this->next_page()."".$this->last_page()."<li class=\"page_all\">".$this->nowindex."/".$this->totalpage."页</li><div class=\"clear\"></div>";
break;
case '4':
$this->next_page='下一页';
$this->pre_page='<';
return "<span>".$this->nowindex."/".$this->totalpage."页</span>".$this->pre_page().$this->next_page()."<div class=\"clear\"></div>";
break;
case '5':
return $this->pre_bar().$this->pre_page().$this->nowbar().$this->next_page().$this->next_bar();
break;
case '6':
return "第".$this->nowindex."/".$this->totalpage."页";
break;
}
}
function _set_url($url="")
{
if(!empty($url)){
$this->url=$url.((stristr($url,'?'))?'&':'?').$this->page_name."=";
}else{
if(empty($_SERVER['QUERY_STRING'])){
$this->url=$this->request_url()."?".$this->page_name."=";
}else{
if(stristr($_SERVER['QUERY_STRING'],$this->page_name.'=')){
$this->url=str_replace($this->page_name.'='.$this->nowindex,'',$this->request_url());
$last=$this->url[strlen($this->url)-1];
if($last=='?'||$last=='&'){
$this->url.=$this->page_name."=";
}else{
$this->url.='&'.$this->page_name."=";
}
}else{
$this->url=$this->request_url().'&'.$this->page_name.'=';
}
}
}
}
function _set_nowindex($nowindex)
{
if(empty($nowindex))
{
if(isset($_GET[$this->page_name]))
{
$this->nowindex=intval($_GET[$this->page_name]);
}
}
else
{
$this->nowindex=intval($nowindex);
}
$this->nowindex=$this->nowindex===0?1:$this->nowindex;
}
function _get_url($pageno=1)
{
if ($this->alias && $this->getarray)
{
$get=$this->getarray;
$get['page']=$pageno;
if ($get['key']) $get['key']=rawurlencode($get['key']);
return url_rewrite($this->alias,$get);
}
else
{
return $this->url.$pageno;
}
}
function _get_text($str)
{
return $this->format_left.$str.$this->format_right;
}
function _get_link($url,$text,$style='')
{
$style=(empty($style))?'':'class="'.$style.'"';
return '<li><a '.$style.' href="'.$url.'">'.$text.'</a></li>';
}
function error($function,$errormsg)
{
die('Error in file <b>'.__FILE__.'</b> ,Function <b>'.$function.'()</b> :'.$errormsg);
}
function request_url()
{
if (isset($_SERVER['REQUEST_URI']))
{
$url = $_SERVER['REQUEST_URI'];
}
else
{
if (isset($_SERVER['argv']))
{
$url = $_SERVER['PHP_SELF'] .'?'. $_SERVER['argv'][0];
}
else
{
$url = $_SERVER['PHP_SELF'] .'?'.$_SERVER['QUERY_STRING'];
}
}
return $url;
}
}
?>