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    Random\Engine\Secure::generate

    (PHP 8 >= 8.2.0)

    Random\Engine\Secure::generate — Generate cryptographically secure randomness

    Descrizione

    public Random\Engine\Secure::generate(): string

    Returns cryptographically secure randomness.

    The sources of randomness in the order of priority are as follows:

    • Linux: » getrandom(), /dev/urandom

    • FreeBSD >= 12 (PHP >= 7.3): » getrandom(), /dev/urandom

    • Windows (PHP >= 7.2): » CNG-API

      Windows: » CryptGenRandom

    • macOS (PHP >= 8.2; >= 8.1.9; >= 8.0.22 if CCRandomGenerateBytes is available at compile time): CCRandomGenerateBytes()

      macOS (PHP >= 8.1; >= 8.0.2): arc4random_buf(), /dev/urandom

    • NetBSD >= 7 (PHP >= 7.1; >= 7.0.1): arc4random_buf(), /dev/urandom

    • OpenBSD >= 5.5 (PHP >= 7.1; >= 7.0.1): arc4random_buf(), /dev/urandom

    • DragonflyBSD (PHP >= 8.1): » getrandom(), /dev/urandom

    • Solaris (PHP >= 8.1): » getrandom(), /dev/urandom

    • Any combination of operating system and PHP version not previously mentioned: /dev/urandom
    • If none of the sources are available or they all fail to generate randomness, then a Random\RandomException will be thrown.

    Elenco dei parametri

    Questa funzione non contiene parametri.

    Valori restituiti

    A string containing PHP_INT_SIZE cryptographically secure random bytes.

    Errori/Eccezioni

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