Super paging class 2.0 released, supports custom styles, default 4 display modes

Super paging class 2.0 is released, supports custom styles, and has 4 default display modes

I saw someone on the forum asking for Baidu paging class, so I posted the paging class from a few weeks ago.
2.0 has been revised relative to 1.0 as follows:
1. Supports PHP4 and PHP5
2. Added ajax paging function
3. Optimized the overall structure of the program
4. Added custom style The function

code is as follows:

Copy code The code is as follows:

/**
* filename: ext_page.class.php
* @package:phpbean
* @author :feifengxlq<[url=http://www.phpobject.net/] http://www.phpobject.net/[/url]>
* @copyright :Copyright 2006 feifengxlq
* @license:version 2.0
* @create:2006-5-31
* @modify:2006-6-1
* @modify:feifengxlq 2006-11-4
* description: Super paging class, four paging modes, the default paging style is similar to Baidu and Google.
* 2.0 added features: support custom styles, custom styles, supports both PHP4 and PHP5,
* to see detail,please visit [url=http://www.phpobject.net/blog/read. php]http://www.phpobject.net/blog/read.php[/url]?
* example:
* Mode four paging modes:
require_once('../libs/classes /page.class.php');
$page=new page(array('total'=>1000,'perpage'=>20));
echo 'mode:1
' .$page->show();
echo '

mode:2
'.$page->show(2);
echo '

mode:3< br>'.$page->show(3);
echo '

mode:4
'.$page->show(4);
Turn on AJAX:
$ajaxpage=new page(array('total'=>1000,'perpage'=>20,'ajax'=>'ajax_page','page_name'=>'test'));
echo 'mode:1
'.$ajaxpage->show();
Adopt inherited custom paging display mode:
demo:http://www.phpobject.net/blog
*/
class page
{
/**
  * config ,public
  */
var $page_name="PB_page";// page tag, used to control the url page. For example, PB_page in xxx.php?PB_page=2
var $next_page='>';//Next page
var $pre_page='<';//Previous page
var $first_page='First';//Home page
var $last_page='Last';//Last page
var $pre_bar='<<';//Previous paging bar
var $ next_bar='>>';//Next paging bar
var $format_left='[';
var $format_right=']';
var $is_ajax=false;//Whether it is supported AJAX paging mode

/**
  * private
  *
  */
var $pagebarnum=10;//Control the number of record bars.
var $totalpage=0;//总页数
var $ajax_action_name='';//AJAX动作名
var $nowindex=1;//当前页
var $url="";//url地址头
var $offset=0;

/**
  * constructor构造函数
  *
  * @param array $array['total'],$array['perpage'],$array['nowindex'],$array['url'],$array['ajax']...
  */
function page($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']:'';
  }else{
     $total=$array;
     $perpage=10;
     $nowindex='';
     $url='';
  }
  if((!is_int($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']);//设置pagename
  $this->_set_nowindex($nowindex);//设置当前页
  $this->_set_url($url);//设置链接地址
  $this->totalpage=ceil($total/$perpage);
  $this->offset=($this->nowindex-1)*$this->perpage;
  if(!empty($array['ajax']))$this->open_ajax($array['ajax']);//打开AJAX模式
}
/**
* Set the value of the specified variable name in the class. If the change does not belong to this class, an exception will be thrown
*
* @param string $var
* @param string $value
*/
function set($var,$value)
{
  if(in_array($var,get_object_vars($this)))
     $this->$var=$value;
  else {
   $this->error(__FUNCTION__,$var." does not belong to PB_Page!");
  }

}
/**
  * 打开倒AJAX模式
  *
  * @param string $action 默认ajax触发的动作。
  */
function open_ajax($action)
{
  $this->is_ajax=true;
  $this->ajax_action_name=$action;
}
/**
* Get the code to display "next page"
*
* @param string $style
* @return string
*/
function next_page($style='')
{
  if($this->nowindex<$this->totalpage){
   return $this->_get_link($this->_get_url($this->nowindex+1),$this->next_page,$style);
  }
  return ''.$this->next_page.'';
}

/**
* Get the code to display "previous page"
*
* @param string $style
* @return string
*/
function pre_page($style='')
{
  if($this->nowindex>1){
   return $this->_get_link($this->_get_url($this->nowindex-1),$this->pre_page,$style);
  }
  return ''.$this->pre_page.'';
}

/**
* Get the code that displays the "Home Page"
*
* @return string
*/
function first_page($style='')
{
  if($this->nowindex==1){
      return ''.$this->first_page.'';
  }
  return $this->_get_link($this->_get_url(1),$this->first_page,$style);
}

/**
* Get the code to display the "last page"
*
* @return string
*/
function last_page($style='')
{
  if($this->nowindex==$this->totalpage){
      return ''.$this->last_page.'';
  }
  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(''.$i.'');
   }else{
    break;
   }
   $return.="n";
  }
  unset($begin);
  return $return;
}
/**
* Get the code to display the jump button
*
* @return string
*/
function select()
{
  $return='';
  for($i=1;$i<=$this->totalpage;$i++)
  {
   if($i==$this->nowindex){
    $return.=''.$i.'';
   }else{
    $return.=''.$i.'';
   }
  }
  unset($i);
  $return.='';
  return $return;
}

/**
* Get the value required for limit in the mysql statement
*
* @return string
*/
function offset()
{
  return $this->offset;
}

/**
* Control paging display style (you can add the corresponding style)
*
* @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().$this->next_page().$this->last_page();
    break;
   case '4':
    $this->next_page='下一页';
    $this->pre_page='上一页';
    return $this->pre_page().$this->nowbar().$this->next_page();
    break;
   case '5':
    return $this->pre_bar().$this->pre_page().$this->nowbar().$this->next_page().$this->next_bar();
    break;
  }

}
/*----------------private function (私有方法)-----------------------------------------------------------*/
/**
* Set url header address
* @param: String $url
* @return boolean
*/
function _set_url($url="")
{
  if(!empty($url)){
      //手动设置
   $this->url=$url.((stristr($url,'?'))?'&':'?').$this->page_name."=";
  }else{
      //自动获取
   if(empty($_SERVER['QUERY_STRING'])){
       //不存在QUERY_STRING时
    $this->url=$_SERVER['REQUEST_URI']."?".$this->page_name."=";
   }else{
       //
    if(stristr($_SERVER['QUERY_STRING'],$this->page_name.'=')){
        //地址存在页面参数
     $this->url=str_replace($this->page_name.'='.$this->nowindex,'',$_SERVER['REQUEST_URI']);
     $last=$this->url[strlen($this->url)-1];
     if($last=='?'||$last=='&'){
         $this->url.=$this->page_name."=";
     }else{
         $this->url.='&'.$this->page_name."=";
     }
    }else{
        //
     $this->url=$_SERVER['REQUEST_URI'].'&'.$this->page_name.'=';
    }//end if
   }//end if
  }//end if
}

/**
* Set the current page
*
*/
function _set_nowindex($nowindex)
{
  if(empty($nowindex)){
   //系统获取

   if(isset($_GET[$this->page_name])){
    $this->nowindex=intval($_GET[$this->page_name]);
   }
  }else{
      //手动设置
   $this->nowindex=intval($nowindex);
  }
}

/**
* Return the address value for the specified page
*
* @param int $pageno
* @return string $url
*/
function _get_url($pageno=1)
{
  return $this->url.$pageno;
}

/**
* Get pagination display text, for example, by default _get_text('1') will return [1 *
* @param String $str
* @return string $url
*/
function _get_text($str)
{
  return $this->format_left.$str.$this->format_right;
}

/**
* Get link address
*/
function _get_link($url,$text,$style=''){
  $style=(empty($style))?'':'class="'.$style.'"';
  if($this->is_ajax){
      //如果是使用AJAX模式
   return 'ajax_action_name.'(''.$url.'')">'.$text.'';
  }else{
   return ''.$text.'';
  }
}
/**
* Error handling methods
*/
function error($function,$errormsg)
{
     die('Error in file '.__FILE__.' ,Function '.$function.'() :'.$errormsg);
}
}
?>

提供一个简单的演示demo

复制代码代码如下:

require_once('../libs/classes/page.class.php');  
$page=new page(array('total'=>1000,'perpage'=>20));  
echo 'mode:1
'.$page->show();  
echo 'mode:2
'.$page->show(2);  
echo 'mode:3
'.$page->show(3);  
echo 'mode:4
'.$page->show(4);  
echo '开始AJAX模式:';  
$ajaxpage=new page(array('total'=>1000,'perpage'=>20,'ajax'=>'ajax_page','page_name'=>'test'));  
echo 'mode:1
'.$ajaxpage->show();  
?> 