获取最近的配送日期

    //给出可配送日期周几序列,当天延迟2天是配送日期,如果没获取到自动延迟一天.获取到可配送日期;
public function tt(){


        $str = '1,3,4,5,6';
        $str_arr = explode(',',$str);
        //$w = date('w',time());

        $seven_days = [];
        $now = time();
        $one = 24 * 3600;

        for($i = 2;$i < 9;$i++)
        {
            $w = date('w',$now + $i * $one);
            $w = $w ?: '7';
            if (in_array($w,$str_arr))
            {
                $seven_days[] = date('Y-m-d',$now + $i * $one);
//                return date('Y-m-d',$now + $i * $one);
//                break;
            }
        }

        dump($seven_days);
        exit;
}