Since this is about remapping a uniform distribution to another with a different range, this is not a PHP question specifically although I am using PHP.
I have a cryptographicaly secure random number generator that gives me evenly distributed integers (uniform discrete distribution) between 0
and PHP_MAX_INT
.
How do I remap these results to fit into a range in an efficient manner?
Currently I am using $mappedRandomNumber = $randomNumber % ($range + 1) + $min
where $range = $max - $min
, but that obvioulsy doesn't work since the first PHP_MAX_INT%$range
have a higher chance to be picked, breaking the uniformity of the distribution.
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