Question

I’m trying to make a script which penalizes a user daily after a time stamp.
For the first day, it will penalize 1 point, second day 2 points, third 4 points, fourth 8 point, 16, 32, 64 and so on.

How would I go about auto generating a strtotime and the multiplications?

I really don’t even know what i’m looking for is called at this point which makes searching hard, sorry if this has been posted.

Answer 1

Let’s suppose, that $timestamp1 is the first day timestamp and the $timestamp2 is now timestamp. Then:

$difference = abs(strtotime($timestamp2)-strtotime($timestamp1));

$days = floor($difference / (60*60*24));
$penalty = pow(2,$days);

echo "{$days} left, so your penalty is: {$penalty}";

Sample results:

0 left, so your penalty is: 1
1 left, so your penalty is: 2
2 left, so your penalty is: 4
3 left, so your penalty is: 8
4 left, so your penalty is: 16
5 left, so your penalty is: 32
6 left, so your penalty is: 64
...