is divisible by....

[Jolten]

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

Something like this:

PHP Code:

if ($a -is divisible by- 4) { 

blah

} else {

Blah Blah

} 

thanks

[noppid]

PHP Code:

if(!($a%4))
{
// do stuff
} 

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.