Question

How do I determine if a digit divided by 8 is an integer?

for example:

32 % 8 = 4, it is an integer.

25 % 8 = 3.125, it is not an integer.

I need a working code like:

if ($str % 8 == integer){
   // continue working
}

Answer 1

the % operator, modulo, will ALWAYS return an integer – it’s the remainder of the division.

If you mean you want to check if a number is evenly divisible by 8, then do

if ($str % 8 == 0) {
   ... evenly divisible by 8 ...
}