Simple question about 1 in 10000 random number

[Grofit]

Hey,

Ive gone a bit dim and for the life of me cant think of the best way to do this...

Im trying to work out the fastest way of working out 1 in 10000 chance. I was originally thinking of using an int and doing a rand like shown below:

$intRand = ($intRandomRate, 10000);
if($intRand ==10000)
{return true;}
else
{return false;}

Now that first of all looked fast and simple to do, but when i set the random rate to 99999, it just doesnt feel like a 99.99% rate... if anything it feels like a 50% rate. This is most likely because even if you do have rand(99999,10000) it still has a 50% chance of being 10000...

SO i need to think of a decent way of having a float or int to designate the random rate and it to be able to handle anything from 0.01% to 99.99%...

I hope my explanations not too stupid...

[NogDog]

I think what you want is:

if(rand(1, 10000) < $intRandomRate)
{
   // true
}
else
{
   // false
}

[Grofit]

presactly what i wanted 😃

Its amazing how you can sit there for hours trying to solve a simple problem and find no decent solution, yet spend 10 minutes doing something you expected to take days to do...

Thanks again!

[bradgrafelman]

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