漂亮的 PHP 验证码类

            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                     $_pagelist .= ' '.$_page.' ';
             }
             $_pagelist .= ' '.$this->page.' ';
             for ($i=1;$ibothnum;$i++) {
                $_page = $this->page+$i;
                    if ($_page > $this->pagenum) break;
                    $_pagelist .= ' '.$_page.' ';
             }
             return $_pagelist;
          }

          //首页
          private function first() {
             if ($this->page > $this->bothnum+1) {
                    return ' 1 ...';
             }
          }

          //上一页
          private function prev() {
             if ($this->page == 1) {
                    return '上一页';
             }
             return ' 上一页 ';
          }

          //下一页
          private function next() {
             if ($this->page == $this->pagenum) {
                    return '下一页';
             }
             return ' 下一页 ';
          }

          //尾页
          private function last() {
             if ($this->pagenum - $this->page > $this->bothnum) {
                    return ' ...'.$this->pagenum.' ';
             }
          }

          //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：

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

验证码, PHP