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crypt_gensalt

(PECL xpass >= 1.1.0)

crypt_gensaltCompile a string for use as the salt argument to crypt

Descrição

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

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

Parâmetros

prefix

Hashing method. One of CRYPT_PREFIX_* constant, see the Xpass constants page. 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.

Valor Retornado

Returns a string with the setting, or null if error.

Exemplos

Exemplo #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);
?>

O exemplo acima produzirá:

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

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