php google或baidu分页代码

php实现google与baidu的分页代码，需要的朋友可以参考下。

<?php 
/** 

作者：潇湘博客 

时间： 
2009-11-26 

php技术群： 
37304662 

使用方法： 
include_once'Pager.class.php'; 
$pager=new Pager(); 
if(isset($_GET['page'])) 
$pager->setCurrentPage($_GET['page']); 
else 
$pager->setCurrentPage(1); 

$pager->setRecorbTotal(1000); 
$pager->setBaseUri("page.php?"); 
echo $pager->execute(); 

**/ 
class Pager{ 
/** 
*int总页数 
**/ 
protected $pageTotal; 
/** 
*int上一页 
**/ 
protected $previous; 
/** 
*int下一页 
**/ 
protected $next; 
/** 
*int中间页起始序号 
**/ 
protected $startPage; 
/** 
*int中间页终止序号 
**/ 
protected $endPage; 
/** 
*int记录总数 
**/ 
protected $recorbTotal; 
/** 
*int每页显示记录数 
**/ 
protected $pageSize; 
/** 
*int当前显示页 
**/ 
protected $currentPage; 
/** 
*string基url地址 
**/ 
protected $baseUri; 

/** 
*@returnstring获取基url地址 
*/ 
public function getBaseUri(){ 
return$this->baseUri; 
} 

/** 
*@returnint获取当前显示页 
*/ 
public function getCurrentPage(){ 
return $this->currentPage; 
} 

/** 
*@returnint获取每页显示记录数 
*/ 
public function getPageSize(){ 
return $this->pageSize; 
} 

/** 
*@returnint获取记录总数 
*/ 
public function getRecorbTotal(){ 
return$this->recorbTotal; 
} 

/** 
*@paramstring$baseUri设置基url地址 
*/ 
public function setBaseUri($baseUri){ 
$this->baseUri=$baseUri; 
} 

/** 
*@paramint$currentPage设置当前显示页 
*/ 
public function setCurrentPage($currentPage){ 
$this->currentPage=$currentPage; 
} 

/** 
*@paramint$pageSize设置每页显示记录数 
*/ 
public function setPageSize($pageSize){ 
$this->pageSize=$pageSize; 
} 

/** 
*@paramint$recorbTotal设置获取记录总数 
*/ 
public function setRecorbTotal($recorbTotal){ 
$this->recorbTotal=$recorbTotal; 
} 

/** 
*构造函数 
**/ 
public function __construct() 
{ 
$this->pageTotal=0; 
$this->previous=0; 
$this->next=0; 
$this->startPage=0; 
$this->endPage=0; 

$this->pageSize=20; 
$this->currentPage=0; 
} 

/** 
*分页算法 
**/ 
private function arithmetic(){ 
if($this->currentPage<1) 
$this->currentPage=1; 

$this->pageTotal=floor($this->recorbTotal/$this->pageSize)+($this->recorbTotal%$this->pageSize>0?1:0); 

if($this->currentPage>1&&$this->currentPage>$this->pageTotal) 
header('location:'.$this->baseUri.'page='.$this->pageTotal); 

$this->next=$this->currentPage+1; 
$this->previous=$this->currentPage-1; 

$this->startPage=($this->currentPage+5)>$this->pageTotal?$this->pageTotal-10:$this->currentPage-5; 
$this->endPage=$this->currentPage<5?11:$this->currentPage+5; 

if($this->startPage<1) 
$this->startPage=1; 

if($this->pageTotal<$this->endPage) 
$this->endPage=$this->pageTotal; 
} 

/** 
*分页样式 
**/ 


protected function pageStyle(){ 
$result="共".$this->pageTotal."页"; 

if($this->currentPage>1) 
$result.="<a href=\"".$this->baseUri."page=1\"><font style=\"font-family:webdings\">第1页</font></a> <a href=\"".$this->baseUri."page=$this->previous\"><fontstyle=\"font-family:webdings\">前一页</font></a>"; 
else 
$result.="<font style=\"font-family:webdings\">第1页</font> <font style=\"font-family:webdings\"></font>"; 

for($i=$this->startPage;$i<=$this->endPage;$i++){ 
if($this->currentPage==$i) 
$result.="<font color=\"#ff0000\">$i</font>"; 
else 
$result.=" <a href=\"".$this->baseUri."page=$i\">$i</a> "; 
} 

if($this->currentPage!=$this->pageTotal){ 
$result.="<a href=\"".$this->baseUri."page=$this->next\"><font style=\"font-family:webdings\">后一页</font></a> "; 
$result.="<a href=\"".$this->baseUri."page=$this->pageTotal\"><font style=\"font-family:webdings\">最后1页</font></a>"; 
}else{ 
$result.="<font style=\"font-family:webdings\">最后1页</font> <font style=\"font-family:webdings\"></font>"; 
} 
return $result; 
} 



/** 
*执行分页 
**/ 
public function execute(){ 
if($this->baseUri!=""&&$this->recorbTotal==0) 
return""; 
$this->arithmetic(); 
return $this->pageStyle(); 
} 
} 
?>