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随机数生成器和相关随机函数
简介
安装/配置
需求
安装
运行时配置
资源类型
预定义常量
示例
Random 函数
getrandmax
— 显示随机数最大的可能值
lcg_value
— 组合线性同余发生器
mt_getrandmax
— 显示随机数的最大可能值
mt_rand
— 通过梅森旋转(Mersenne Twister)随机数生成器生成随机值
mt_srand
— 播下一个更好的随机数发生器种子
rand
— 产生一个随机整数
random_bytes
— Get cryptographically secure random bytes
random_int
— 获取生成加密安全、均匀分布的整数
srand
— 播下随机数发生器种子
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\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
— Random\Engine\Mt19937 类
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
— Random\Engine\Xoshiro256StarStar 类
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
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