lcg_value

Combined linear congruential generator

Description

float lcg_value ( void )

lcg_value 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.

Caution

This function does not generate cryptographically secure values, and should not be used for cryptographic purposes. If you need a cryptographically secure value, consider using random_int, random_bytes, or openssl_random_pseudo_bytes instead.

Return Values

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

See Also

  • rand
  • mt_rand