lcg_value(3) php man page | unix.com

LCG_VALUE(3)								 1							      LCG_VALUE(3)

lcg_value - Combined linear congruential generator

SYNOPSIS
       float lcg_value (void  )

DESCRIPTION
       lcg_value(3) returns a pseudo random number in the range of (0, 1). The function combines two CGs with periods of 2^31 - 85 and 2^31 - 249.
       The period of this function is equal to the product of both primes.

RETURN VALUES
	A pseudo random float value in the range of (0, 1)

SEE ALSO
       rand(3), mt_rand(3).

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