GoLang lcg_value

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PHP lcg_value

PHP original manual for lcg_value [ show | php.net ]


(PHP 4, PHP 5, PHP 7)

lcg_valueCombined linear congruential generator


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.


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 between 0.0 and 1.0, inclusive.

See Also

  • rand() - Generate a random integer
  • mt_rand() - Generate a random value via the Mersenne Twister Random Number Generator