在PHP / MySQL中每天增加一个值

Question

I want to increment a value in MySQL everyday. Starting with 0 and adding +1 for each day.

I've looked at several methods but it usually involves parsing it out of the calendar and starts getting messy. Does anyone have a nice solution for how I could do this in php/mysql?

Reason: I have a table of data and want to email 1 row each day. So row 0 will send on day one, then row 2 on day 2.

Answer 1

You can use difference between days to get id , so every day you got a new id

class Helper
{

    public static $start=1523664000; //2018-04-13



    public static function getRowOfToday(){

        $now = time(); // or your date as well
        $datediff = $now - Helper::$start;
        $id = round($datediff / (60 * 60 * 24));

        return $id;
    }

}

then you can call Helper::getRowOfToday() to get the current row