is divisible by....

[Jolten]

How can I code a line and use a function like "is divisible by"?

Something like this:



Code:
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thanks

[noppid]

Code:
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http://www.w3schools.com/php/php_operators.asp

[Jolten]

Thank you!

So I understand... basically it's if $a is NOT a multiple of 4 then.... Is that correct? Just want to understand the underlying code.