/**
     * 根据开始时间 和结束时间 循环生成期间内的时间信息
     * @param $format_date
     * @return array
     */
　　　function day_time_array($start_time,$end_time){
        $day_list = array();
        $day_key = ceil(diffBetweenTwoDays($start_time,$end_time));  //计算跨度天数
        for ($i=1;$i<=$day_key;$i++ ){
            //判断是否是第一天
            $day_info = array("start_time"=>'0:00',"end_time"=>'23:59');
            $key = $i-1 ;
            $week_i = $key;
            if($i==1){
                $data_time = strtotime($start_time);
                $day_info['start_time'] = date("H:i",strtotime($start_time));
            }else{
                $data_time = strtotime("$start_time +$week_i day");
            }
            //判断是否是最后一天 是否是第一天
            if($i==$day_key){
                $day_info['end_time'] = date("H:i",strtotime($end_time));
            }
            $day_info['day_time'] = date("Y-m-d",$data_time);
            $day_info['start'] = strtotime($day_info['day_time'].' 00:00');
            $day_info['end'] = strtotime($day_info['day_time'].' 23:59:59');
            $day_info['week_time'] = $data_time;
            $day_info['week'] = date("w",$data_time);
            $day_list[] = $day_info;
        }
        return array("day_list"=>$day_list);
    }

    function diffBetweenTwoDays($day1, $day2)
    {
        $second1 = strtotime($day1);
        $second2 = strtotime($day2);
        if ($second1 < $second2) {
            $tmp = $second2;
            $second2 = $second1;
            $second1 = $tmp;
        }
        //判断两个初始时间的天数 如果大于实际差天 
        $fomat_start = strtotime(date("Y-m-d",$second2)) ;
        $fomat_end = strtotime(date("Y-m-d",$second1)) ;
        $fomat_day = (($fomat_end - $fomat_start) / 86400)+1;
        $real_day = ($second1 - $second2) / 86400;
        if($fomat_day>$real_day){
            return $fomat_day ;
        }else{
            return $real_day ;
        }
    }