PHP封装的完整分页类示例

PHP封装的完整分页类。具体如下：

  <?php   class pageclass{    private $total;   //总记录    private $pagesize;   //每页显示多少条    private $limit;    //limit    private $page;    //当前页    private $pagenum;  //总页码    private $url;    //地址    public function __construct($_total,$_pagesize,$page){      $this->total = $_total ? $_total :1 ;  //总条数      $this->pagesize = $_pagesize;      //每页显示多少条      $this->page = $page;          //当前页码      $this->pagenum = ceil($this->total / $this->pagesize);  //总页码      $this->limit = "limit ".($this->page-1)*$this->pagesize.",".$this->pagesize;  //分页语句      $this->url = $this->setUrl();  //地址    }    //分页语句    public function limit(){      return $this->limit;    }    //当前的url地址    public function setUrl(){      $server = $_SERVER['REQUEST_URI'];      $im = explode('/',$server);      if(empty($_SERVER['PATH_INFO'])){        $array = array_splice($im,2,0,array('2'=>'index.php'));      }      $controller = $im[3];      $action = $im[4];      if(empty($_SERVER['PATH_INFO'])){        $servers = "http://".$_SERVER['HTTP_HOST']."/".$im[1]."/".$controller."/".$action."/";      }else{        $servers = "http://".$_SERVER['HTTP_HOST'].$_SERVER['SCRIPT_NAME']."/".$controller."/".$action."/";      }      return $servers;      //return $im;    }    //首页    public function first(){      //return $this->page;      if($this->page > 1){        return "<a href='".$this->url."page/1'>首页</a>";      }    }    //上一页    public function prev(){      if($this->page==1){        $page = 1;      }else{        $page = $this->page-1;      }      if($this->page > 1){        return "<a href='".$this->url."page/".$page."'>上一页</a>";      }else{        return "<span class='disabled'>上一页</span>";      }    }    //下一页    public function next(){      $page = $this->page+1;      if($this->page < $this->pagenum){        if(empty($this->page)){          $pages = $this->page+2;          return "<a href='".$this->url."page/".$pages."'>下一页</a>";        }else{          return "<a href='".$this->url."page/".$page."'>下一页</a>";        }      }else{        return "<span class='disabled'>下一页</span>";      }    }    //尾页    public function last(){      if($this->page < $this->pagenum){        return "<a href='".$this->url."page/".$this->pagenum."'>尾页</a>";      }    }    //分页    public function showpage(){      $page_ = "";      $page_ .= $this->first();      $page_ .= " ".$this->prev();      $page_ .= " ".$this->next();      $page_ .= " ".$this->last();      return $page_;    }  }