crypt_gensalt

    (PECL xpass >= 1.1.0)

    crypt_gensalt — Compile a string for use as the salt argument to crypt

    Descrizione

    crypt_gensalt(string $prefix = null, int $count = 0): ?string

    Compile a string for use as the salt argument to crypt().

    Elenco dei parametri

    prefix
    Hashing method. One of the CRYPT_PREFIX_* constant. If null, the best available hashing method will be selected.
    count
    Controls the processing cost of the hash; the valid range and exact meaning of count depend on the hashing method, but larger numbers correspond to more costly hashes in terms of CPU time and possibly memory usage. If count is 0, a low default cost will be selected.

    Valori restituiti

    Returns a string with the setting, or null in case of an error.

    Esempi

    Example #1 A crypt_gensalt() example

    <?php
    // Generate the salt
    $salt = crypt_gensalt(CRYPT_PREFIX_BLOWFISH);
    // Hash the password
    $hash = crypt("secret", $salt);
    // Check the hash
    $test = hash_equals(crypt("secret", $hash), $hash);
    var_dump($salt, $hash, $test);
    ?>

    Il precedente esempio visualizzerà:

    string(29) "$2y$05$GcPykP.Am8C1.dGamdpwW."
string(60) "$2y$05$GcPykP.Am8C1.dGamdpwW.1RR.7uicWvJPZfJfCEizZHqVWwuaJLm"
bool(true)

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