CREATE TABLE `members_sign` (
 `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
 `uid` int(11) unsigned NOT NULL COMMENT '用户id',
 `days` tinyint(2) unsigned NOT NULL DEFAULT '0' COMMENT '连续签到的天数',
 `is_share` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '是否分享过',
 `is_sign` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '是否签到过',
 `stime` int(11) unsigned NOT NULL DEFAULT '0' COMMENT '签到的时间',
 `atime` int(11) unsigned NOT NULL DEFAULT '0' COMMENT '添加时间',
 PRIMARY KEY (`id`),
 KEY `index_uid` (`uid`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=162 DEFAULT CHARSET=utf8 COMMENT='签到分享表';

<"id = {$todayData['id']}")->save($data);
      }
      if($id or $save){
        $score = $this->getTodayScores($data['days']);
        // 为该用户添加积分
        addScore($this->uid,$score);
        $this->successMsg('已签到',array('score' => $score,'days'=>$data['days']));
      }else{
        $this->errorMsg('签到失败，请刷新后重试！');
      }
    }
  }
  /**
  * 返回每次签到要插入的数据
  *
  * @param int $uid 用户id
  * @return array(
  *  'days'   =>  '天数',
  *  'is_sign'  =>  '是否签到,用1表示已经签到',
  *  'stime'   =>  '签到时间',
  * );
  */
  protected function getInsertData($uid){
    // 昨天的连续签到天数
    $start_time = strtotime(date('Y-m-d 0:0:0',time()-86400))-1;
    $end_time  = strtotime(date('Y-m-d 23:59:59',time()-86400))+1;
    $days = M('members_sign')->where("uid = $uid and atime > $start_time and atime < $end_time")->getField('days');
    if($days){
      $days++;
      if($days > 30){
        $days = 1;
      }
    }else{
      $days = 1;
    }
    return array(
      'days'    => $days,
      'is_sign'  => 1,
      'stime'   => time()
    );
  }
  /**
  * 用户当天签到的数据
  * @return array 签到信息 is_sign,stime 等
  */
  protected function todayData(){
    $time = time();
    $start_stime  = strtotime(date('Y-m-d 0:0:0',$time))-1;
    $end_stime = strtotime(date('Y-m-d 23:59:59',$time))+1;
    return M('members_sign')->field('atime',true)->where("uid = {$this->uid} and atime > $start_stime and atime < $end_stime")->find();
  }
  /**
  * 积分规则，返回连续签到的天数对应的积分
  *
  * @param int $days 当天应该得的分数
  * @return int 积分
  */
  protected function getTodayScores($days){
    if($days == 30){
      return 50;
    }else if($days > 19){
      return 8;
    }else if($days > 9){
      return 5;
    }else{
      return 3;
    }
  }
  /**
  * 显示签到列表
  *
  * @param array  $signDays 某月签到的日期 array(1,2,3,4,5,12,13)
  * @param int $year    可选，年份
  * @param int $month   可选，月份
  * @return string 日期列表<li>1</li>....
  */
  protected function showDays($signDays,$year,$month){
    $time = time();
    $year = $year "$year-$month-$j"));
      // 小于今天的日期样式
      if ($someDay <= $now){
        // 当天日期样式 tdc = todayColor
        if($someDay == $now){
          // 当天签到过的
          if(in_array($j,$signDays)){
            $str .= '<li class="current fw tdc">'.$j.'</li>';
          }else{
            $str .= '<li class="today fw tdc">'.$j.'</li>';
          }
        }else{
          // 签到过的日期样式 current bfc = beforeColor , fw = font-weight
          if(in_array($j,$signDays)){
            $str .= '<li class="current fw bfc">'.$j.'</li>';
          }else{
            $str .= '<li class="fw bfc">'.$j.'</li>';
          }
        }
      }else{
        $str .= '<li>'.$j.'</li>';
      }
    }
    return $str;
  }
  /**
  * 获取当月签到的天数，与 $this->showDays() 配合使用
  * @return 当月签到日期 array(1,2,3,4,5,12,13)
  */
  protected function getMonthSign(){
    $time  = time();
    $year  = date('Y',$time);
    $month = date('m',$time);
    $day  = date("t",strtotime("$year-$month"));
    $start_stime  = strtotime("$year-$month-1 0:0:0")-1;
    $end_stime = strtotime("$year-$month-$day 23:59:59")+1;
    $list = M('members_sign')->where("uid = {$this->uid} and stime > $start_stime and stime < $end_stime")->order('stime asc')->getField('stime',true);
    foreach ($list as $key => $value){
      $list[$key] = date('j',$value);
    }
    return $list;
  }
}