漂亮的 PHP 验证码类

    <?php  
        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;  
          }  
     }  
    ?>  

   分页样式如下图所示： 

        使用说明：

    <?php  
        $_page = new Page($_total,$_pagesize); //其中 $_total 是数据集的总条数,$_pagesize 是每页显示的数量.  
    ?>