Random Number Generators and Functions Related to Randomness

Introduction

Predefined Constants
Examples
Random Functions
- getrandmax — Show largest possible random value
- lcg_value — Combined linear congruential generator
- mt_getrandmax — Show largest possible random value
- mt_rand — Generate a random value via the Mersenne Twister Random Number Generator
- mt_srand — Seeds the Mersenne Twister Random Number Generator
- rand — Generate a random integer
- random_bytes — Get cryptographically secure random bytes
- random_int — Get a cryptographically secure, uniformly selected integer
- srand — Seed the random number generator
Random\Randomizer — The Random\Randomizer class
- Random\Randomizer::__construct — Constructs a new Randomizer
- Random\Randomizer::getBytes — Get random bytes
- Random\Randomizer::getBytesFromString — Get random bytes from a source string
- Random\Randomizer::getFloat — Get a uniformly selected float
- Random\Randomizer::getInt — Get a uniformly selected integer
- Random\Randomizer::nextFloat — Get a float from the right-open interval [0.0, 1.0)
- Random\Randomizer::nextInt — Get a positive integer
- Random\Randomizer::pickArrayKeys — Select random array keys
- Random\Randomizer::__serialize — Serializes the Randomizer object
- Random\Randomizer::shuffleArray — Get a permutation of an array
- Random\Randomizer::shuffleBytes — Get a byte-wise permutation of a string
- Random\Randomizer::__unserialize — Deserializes the data parameter into a Randomizer object
Random\IntervalBoundary — The Random\IntervalBoundary Enum
Random\Engine — The Random\Engine interface
- Random\Engine::generate — Generates randomness
Random\CryptoSafeEngine — The Random\CryptoSafeEngine interface
Random\Engine\Secure — The Random\Engine\Secure class
- Random\Engine\Secure::generate — Generate cryptographically secure randomness
Random\Engine\Mt19937 — The Random\Engine\Mt19937 class
- Random\Engine\Mt19937::__construct — Constructs a new Mt19937 engine
- Random\Engine\Mt19937::__debugInfo — Returns the internal state of the engine
- Random\Engine\Mt19937::generate — Generate 32 bits of randomness
- Random\Engine\Mt19937::__serialize — Serializes the Mt19937 object
- Random\Engine\Mt19937::__unserialize — Deserializes the data parameter into a Mt19937 object
Random\Engine\PcgOneseq128XslRr64 — The Random\Engine\PcgOneseq128XslRr64 class
- Random\Engine\PcgOneseq128XslRr64::__construct — Constructs a new PCG Oneseq 128 XSL RR 64 engine
- Random\Engine\PcgOneseq128XslRr64::__debugInfo — Returns the internal state of the engine
- Random\Engine\PcgOneseq128XslRr64::generate — Generate 64 bits of randomness
- Random\Engine\PcgOneseq128XslRr64::jump — Efficiently move the engine ahead multiple steps
- Random\Engine\PcgOneseq128XslRr64::__serialize — Serializes the PcgOneseq128XslRr64 object
- Random\Engine\PcgOneseq128XslRr64::__unserialize — Deserializes the data parameter into a PcgOneseq128XslRr64 object
Random\Engine\Xoshiro256StarStar — The Random\Engine\Xoshiro256StarStar class
- Random\Engine\Xoshiro256StarStar::__construct — Constructs a new xoshiro256** engine
- Random\Engine\Xoshiro256StarStar::__debugInfo — Returns the internal state of the engine
- Random\Engine\Xoshiro256StarStar::generate — Generate 64 bits of randomness
- Random\Engine\Xoshiro256StarStar::jump — Efficiently move the engine ahead by 2^128 steps
- Random\Engine\Xoshiro256StarStar::jumpLong — Efficiently move the engine ahead by 2^192 steps
- Random\Engine\Xoshiro256StarStar::__serialize — Serializes the Xoshiro256StarStar object
- Random\Engine\Xoshiro256StarStar::__unserialize — Deserializes the data parameter into a Xoshiro256StarStar object
Random\RandomError — The Random\RandomError class
Random\BrokenRandomEngineError — The Random\BrokenRandomEngineError class
Random\RandomException — The Random\RandomException class