What exactly does this mean?
$number = ( 3 - 2 + 7 ) % 7;
What exactly does this mean? $number = ( 3 – 2 + 7 )
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It’s the modulus operator, as mentioned, which returns the remainder of a division operation.
Examples:
3%5returns 3, as 3 divided by 5 is 0 with a remainder of 3.5 % 10returns 5, for the same reason, 10 goes into 5 zero times with a remainder of 5.10 % 5returns 0, as 10 divided by 5 goes exactly 2 times with no remainder.In the example you posted,
(3 - 2 + 7)works out to 8, giving you8 % 7, so$numberwill be1, which is the remainder of 8/7.