[RESOLVED] How many possible combinations?

[zzz]

I found a script that generates alpha code with 8 characters.

function generator($lenght=8)
{
     for($i = 0; $i <= $lenght; $i++)
     {
          $uniqueKey .= chr(rand(97,122));
     }
     return $uniqueKey;
}

What are the chances it will eventually create a duplicate code.

I know it's a stupid question, but how many possible combinations is possible with 8 characters?

[Installer]

pow(26, 8), I believe.

[zzz]

Sorry... you got me. I'm sure the answer is correct but a bit cryptic for me... I'm still clueless.

[Installer]

pow() is a php function. It's in the manual.

208827064576

[zzz]

Wow, great. Learning something new everyday!