Random Floating point numbers

I am trying to write a function that will gerenerate a random number that is
of float value. Now I need it to generate between two values like so:

Lets say I have a value of .5 and 1.5. I want hte number to be between .5
and 1.5. Here is what I got so far:

function GetRandomValue($min, $max)
{
$range = $max-$min;
$num = $min + $range * mt_rand(0, 32767)/32767;

$num = round($num, 4);

return ((float) $num);
}

Now this seems to work to get me a value between like .04 and .03 but
nothing else. Anyone have any other suggestions?

"Viruss" <haha@hah.ca> wrote in message
news:RiAyc.734446$oR5.666689@pd7tw3no...
> I am trying to write a function that will gerenerate a random number that
is
> of float value. Now I need it to generate between two values like so:
>
> Lets say I have a value of .5 and 1.5. I want hte number to be between .5
> and 1.5. Here is what I got so far:
>
> function GetRandomValue($min, $max)
> {
> $range = $max-$min;
> $num = $min + $range * mt_rand(0, 32767)/32767;
>
> $num = round($num, 4);
>
> return ((float) $num);
> }
>
> Now this seems to work to get me a value between like .04 and .03 but
> nothing else. Anyone have any other suggestions?
>
>

Never mind that function seems to have taken care of it I was entering bad
data. Thanks though