Telling whether a number is odd or even

[Anon]

Hi,

How would I tell whether a number is odd or even?

Thanks

Alice

[spags]

Thats easy, just do something like

if (($num % 2) == 0) {
print "Number is even;"
}
else {
print "Number is odd";
}

The % is the mod operator, and returns the remainer of, in the case num/2 .. if the result is 0, that means it was divisible by 2 ... and thus even.
'

[Anon]

$a % $b
Modulus, Remainder of ($a divided by $b).

---

function checkIsEven($num){
$rem = $num % 2;
if (($rem==0) || (!$rem))
{
return true;
// an even number
}
else
{
return false;
// an odd number
}
}

if you divide a number by 2 and get 0 for the remainder you have an even number. if you get anything else ... .4, .7, .8 ... then it is an odd number....
make sense?

[Anon]

thanks

it works