判断某天是否节假日

/**
 * 判定某天是否是假期
 * $date 格式“2018-8-8”   默认为当天
 * return true 假日，false 上班
 * Evin
 * 2018.3.15
 */
function _today_is_holiday($date = false)
{
    if (!$date) {
        $date = date('Y-n-j', time());
    }
    //$date = '2018-3-17';
    //第三方获取节假日
    $map['jh_time'] = strtotime(date('Y-n', strtotime($date)));
    $holiday        = M('JuheHoliday')->where($map)->find();
    if ($holiday) {
        $holiday = json_decode($holiday['jh_content'], true);
    } else {
        $year_month = date('Y-n', strtotime($date));
        $date_info  = juhecurl('http://v.juhe.cn/calendar/month', 'year-month=' . $year_month . '&key=' . C('JUHEAPPKEY'));
        $date_info  = json_decode($date_info, true);
        $date_info  = json_decode($date_info['result']['data']['holiday'], true);
        $list       = array();
        foreach ($date_info as $k => $v) {
            if ($list) {
                foreach ($v['list'] as $key => $val) {
                    array_push($list, $val);
                }
            } else {
                $list = $v['list'];
            }
        }
        $data['jh_content'] = json_encode($list);
        $data['jh_time']    = strtotime($year_month);
        M('JuheHoliday')->add($data);
        $holiday = json_decode($data['jh_content'], true);
    }
    $ret  = false;
    $week = date('w', strtotime($date));
    //周末
    if ($week == 0 || $week == 6) {
        $ret = true;
    }
    //法定节假日
    foreach ($holiday as $k => $v) {
        if ($date == $v['date']) {
            if ($v['status'] == '1') {
                $ret = true;
                break;
            } else {
                $ret = false;
            }
        }
    }
    return $ret;
}

http://v.juhe.cn/calendar/month改地址是第三方