crypt_checksalt
PHP function
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(PECL xpass >= 1.1.0)
Validate a crypt setting string
Description
crypt_checksalt(string $salt): string|null
Checks the salt string against the system configuration and reports whether the hashing method and parameters it specifies are acceptable. It is intended to be used to determine whether the user's passphrase should be re-hashed using the currently preferred hashing method.
Parameters
saltSalt string to check.
Return Values
Returns one of the CRYPT_SALT_* as an int.
Examples
A crypt_checksalt() example
php
<?php
// Generate a salt for a legacy method
$salt = crypt_gensalt(CRYPT_PREFIX_STD_DES);
// Check the salt
$test = crypt_checksalt($salt);
var_dump($test === CRYPT_SALT_METHOD_LEGACY);
// Generate a salt for default method
$salt = crypt_gensalt();
// Check the salt
$test = crypt_checksalt($salt);
var_dump($test === CRYPT_SALT_OK);
?>The above example will output:
output
bool(true)
bool(true)