/**
 * 
 * @param $_sql
 * @param $_size
 */

function _page($_sql,$_size) {
  //将里面的所有变量取出来，外部可以访问
  global $_page,$_pagesize,$_pagenum,$_pageabsolute,$_num;
  if (isset($_GET['page'])) {
    $_page = $_GET['page'];
    if (empty($_page) || $_page < 0 || !is_numeric($_page)) {
      $_page = 1;
    } else {
      $_page = intval($_page);
    }
  } else {
    $_page = 1;
  }
  $_pagesize = $_size;
  $_num = _num_rows(_query($_sql));
  if ($_num == 0) {
    $_pageabsolute = 1;
  } else {
    $_pageabsolute = ceil($_num / $_pagesize);
  }
  if ($_page > $_pageabsolute) {
    $_page = $_pageabsolute;
  }
  $_pagenum = ($_page - 1) * $_pagesize;
}


/**
 * _paging分页函数
 * @param $_type
 * @return 返回分页
 */

function _paging($_type) {
  global $_page,$_pageabsolute,$_num;
  if ($_type == 1) {
    echo '<div id="page_num">';
    echo '<ul>';
        for ($i=0;$i<$_pageabsolute;$i++) {
            if ($_page == ($i+1)) {
              echo '<li><a href="blog.php" class="selected">'.($i+1).'</a></li>';
            } else {
              echo '<li><a href="blog.php">'.($i+1).'</a></li>';
            }
        }
    echo '</ul>';
    echo '</div>';
  } elseif ($_type == 2) {
    echo '<div id="page_text">';
    echo '<ul>';
    echo '<li>'.$_page.'/'.$_pageabsolute.'页 | </li>';
    echo '<li>共有<strong>'.$_num.'</strong>个会员 | </li>';
        if ($_page == 1) {
          echo '<li>首页 | </li>';
          echo '<li>上一页 | </li>';
        } else {
          echo '<li><a href="'.SCRIPT.'.php">首页</a> | </li>';
          echo '<li><a href="'.SCRIPT.'.php">上一页</a> | </li>';
        }
        if ($_page == $_pageabsolute) {
          echo '<li>下一页 | </li>';
          echo '<li>尾页</li>';
        } else {
          echo '<li><a href="'.SCRIPT.'.php">下一页</a> | </li>';
          echo '<li><a href="'.SCRIPT.'.php">尾页</a></li>';
        }
    echo '</ul>';
    echo '</div>';
  }
}