/**
* 超级好用的PHP分页类
*
* @param 
* @arrange 512-笔记网： www.www.jb51.cc
**/

class Page {
private $total;     //总记录
private $pagesize;   //每页显示多少条
private $limit;     //limit
private $page;     //当前页码
private $pagenum;   //总页码
private $url;      //地址
private $bothnum;   //两边保持数字分页的量
//构造方法初始化
public function __construct($_total,$_pagesize) {
 $this->total = $_total ? $_total : 1;
 $this->pagesize = $_pagesize;
$this->pagenum = ceil($this->total / $this->pagesize);
 $this->page = $this->setPage();
 $this->limit = "LIMIT ".($this->page-1)*$this->pagesize.",$this->pagesize";
 $this->url = $this->setUrl();
 $this->bothnum = 2;
}
//拦截器
private function __get($_key) {
 return $this->$_key;
}
//获取当前页码
private function setPage() {
 if (!empty($_GET['page'])) {
   if ($_GET['page'] > 0) {
	 if ($_GET['page'] > $this->pagenum) {
	   return $this->pagenum;
	 } else {
	   return $_GET['page'];
	 }
   } else {
	 return 1;
   }
 } else {
   return 1;
 }
} 
//获取地址
private function setUrl() {
 $_url = $_SERVER["REQUEST_URI"];
 $_par = parse_url($_url);
 if (isset($_par['query'])) {
   parse_str($_par['query'],$_query);
   unset($_query['page']);
   $_url = $_par['path'].'?'.http_build_query($_query);
 }
 return $_url;
}   //数字目录
private function pageList() {
 for ($i=$this->bothnum;$i>=1;$i--) {
  $_page = $this->page-$i;
  if ($_page < 1) continue;
   $_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
 }
 $_pagelist .= ' <span class="me">'.$this->page.'</span> ';
 for ($i=1;$i<=$this->bothnum;$i++) {
   $_page = $this->page+$i;
   if ($_page > $this->pagenum) break;
   $_pagelist .= ' <a href="'.$this->url.'&page='.$_page.'">'.$_page.'</a> ';
 }
 return $_pagelist;
}
//首页
private function first() {
 if ($this->page > $this->bothnum+1) {
   return ' <a href="'.$this->url.'">1</a> ...';
 }
}
//上一页
private function prev() {
 if ($this->page == 1) {
   return '<span class="disabled">上一页</span>';
 }
 return ' <a href="'.$this->url.'&page='.($this->page-1).'">上一页</a> ';
}
//下一页
private function next() {
 if ($this->page == $this->pagenum) {
   return '<span class="disabled">下一页</span>';
 }
 return ' <a href="'.$this->url.'&page='.($this->page+1).'">下一页</a> ';
}
//尾页
private function last() {
 if ($this->pagenum - $this->page > $this->bothnum) {
   return ' ...<a href="'.$this->url.'&page='.$this->pagenum.'">'.$this->pagenum.'</a> ';
 }
}
//分页信息
public function showpage() {
 $_page .= $this->first();
 $_page .= $this->pageList();
 $_page .= $this->last();
 $_page .= $this->prev();
 $_page .= $this->next();
 return $_page;
}
}

/***   来自编程之家 jb51.cc（jb51.cc）   ***/

/**
* 超级好用的PHP分页类
*
* @param 
* @arrange 512-笔记网： www.www.jb51.cc
**/
$_page = new Page($_total,$_pagesize); //其中 $_total 是数据集的总条数,$_pagesize 是每页显示的数量.
/**   来自编程之家 jb51.cc（jb51.cc）   ***/