(PHP 5 >= 5.5.0, PHP 7)
Generates a PKCS5 v2 PBKDF2 string, defaults to SHA-1
string openssl_pbkdf2 ( string $password, string $salt, int $key_length, int $iterations [, string $digest_algorithm ] )
Parameters:
password
salt
key_length
iterations
digest_algorithm
Returns:
Returns string or FALSE
on failure.
This function is currently not documented; only its argument list is available.
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