此表达式如何工作？ （$ variable / 60）％60

Question

I understand how modulus works. It gives the remainder of the number. So 482 % 60 would give 2.

Can someone explain to me this expression:

$minutes = ($seconds/60) % 60;

To me this says:

if $seconds = 482

$minutes = (482/60) % 60
$minutes = (8.03333333333333) % 60

Then the result of that is 8. To me, it would have been simpler to leave out the % 60 part and just make 482/60 be an integer. And I don't understand how the % 60 is operating in this case.

What am I missing?

Answer 1

It gives you the minutes without the hours. Your example does not illustrate this as you are using seconds < 3600.

4000 seconds:
(seconds/60)%60
(4000/60)%60
(66.666)%60

6 minutes as a result. The 1 hour is calculated by another formula, most notably seconds/3600.

Answer 2

Consider if seconds was 3661. You would have one hour, one minute, one second. Your formula would have minutes as 61.