can't get return from a function

[Anon]

i have a function that returns a value

function blah
{
...
$temp1 = strpos($sp_data,"<CURRENTLISTENERS>",0);
$temp2 = strpos($sp_data,"</CURRENTLISTENERS>",0);
$listeners = substr($sp_data,$temp1,$temp2 - $temp1);
return $listeners;
}

ok so..

$xx = blah()

but when i try to do anything with $xx mathmaticaly it returns 0?

$y = $xx * 100;

$y equals 0 for some reason? is there sumthing i am doing wrong?

[Anon]

Well To answer my own queston.

in the web broswer, it returns
<CURRENTLISTENERS>30
so i only saw 30 and then when i tryed to do sumthing with the var i thought it was 30 =)

$listeners = substr($sp_data,$temp1 + 18,$temp2 - $temp1 - 18);

fixes the prob!