I am learning to work with some math like PHP query and just got to the modulo, I am not quite sure in what situations to use this because of something i stumbled on and yes I did already read one of the posts here about the modulo : Understanding The Modulus Operator %
(This explanation is only for positive numbers since it depends on the language otherwise)
The quote above is in the top answer there. But if I focus on PHP only and i use the modulo like this:
$x = 8; $y = 10; $z = $x % $y; echo $z; // this outputs 8 and I semi know why. Calculation: (8/10) 0 //times does 10 fit in 8. 0 * 10 = 0 //So this is the number that has to be taken off of the 8 8 - 0 = 8 //<-- answer Calculation 2: (3.2/2.4) 1 //times does this fit 1 * 2.4 = 2.4 //So this is the number that has to be taken off of the 3.2 3.2 - 2.4 = 0.8 // but returns 1? So my question is why does this exactly happen. my guess would be that in the first phase it would get 8/10 = 0,8 but this doesn't happen. So can someone explain a bit about why this happens. I understand the modulo's basics like if I do 10 % 8 = 2 and I semi understand why it doesn't return something like this: 8 % 10 = -2.
Also, is there a way to modify how the modulo works? so it would return a - value or a decimal value in the calculation? or would I need to use something else for this
Little shortened: why does this happen when I get a negative number in return and is there some other way or operator that can actually do the same and get in the negative numbers.