php数组分页类

 <?php
     class ArrayPage{
         public $totalPage;//全部页数
         public $lists;//每页显示数目
         public $arr = array();//分页的数组
         public $url = '';//分页地址
         public $order;
         public $_error = '一切正常';//报错提示
         public function __construct(array $arr,$lists = 10,$url,$order =0){
             if( empty($arr) ){
                 $this->_error = '数组不存在';
                 return false;
             }
             if($url == ''){
                 $this->_error = '域名地址不可缺少';
                 return false;
             }
             $this->lists = $lists;
             $this->url = $url;
             $this->arr = $arr;
             $count = count($arr);
             $this->totalPage = ceil($count / $this->lists);
         }

         public function getData(){
             $page = empty($_GET['page'])?1:$_GET['page'];
             $start = ($page - 1)*$this->lists;
             //return $this->lists;
             if($this->order == 1){
                 $this->arr = array_reverse($this->arr);
             }
             $res = array_slice($this->arr,$start,$this->lists);
             return $res;
         }

         public function getShow(){
             $page = empty($_GET['page'])?1:$_GET['page'];
             if($page > 1){
                 $prevPage = $page-1;
             }else{
                 $prevPage = 1;
             }

             if($page < $this->totalPage){
                 $nextPage = $page+1;
             }else{
                 $page = $this->totalPage;
             }
             $str = '<div style="border:1px; width:300px; height:30px; color:#9999CC">';
             $str .= "<span>共  {$this->totalPage}  页 / 第 {$page} 页</span>";
             $str .= "<span><a href='{$this->url}?page=1'>   首页  </a></span>";
             if($page == 1){
                 $str .= "<span> 上一页  </span>";
             }else{
                 $str .= "<span><a href='{$this->url}?page={$prevPage}'> 上一页  </a></span>";
             }
             if($page == $this->totalPage){
                 $str .= "<span>下一页  </span>";
             }else{
                 $str .= "<span><a href='{$this->url}?page={$nextPage}'>下一页  </a></span>";
             }
             $str .= "<span><a href='{$this->url}?page={$this->totalPage}'>尾页  </a></span>";
             $str .= '</div>';
             return $str;
         }

         public function getError(){
             return $this->_error;
         }
     }
     for($i =0;$i<100;$i++){
         $arr[$i] = $i*10;
     }
     $page = new ArrayPage($arr,10,'http://localhost/testSvn/arrayPage.php',0);
     $res = $page->getData();
     echo $page->getShow();