Why is there == 0 near some modulo in PHP?

[John_Betong]

@John_Betong

for($i=0; $i<10; $i++)
{
if( $i % 3 == 0 )
{
echo ‘<br>’;
}
echo $i. ', ';
}//

I like the way PHP Manual explanation that the % is:

Modulus Arithmetic Operator
$a % $b is the Remainder of $a divided by $b.