Generate a keyed hash value using the HMAC method

Beschreibung

string hash_hmac ( string $algo , string $data , string $key [, bool $raw_output= false ] )

Parameter-Liste

algo: Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..)
data: Message to be hashed.
key: Shared secret key used for generating the HMAC variant of the message digest.
raw_output: When set to TRUE, outputs raw binary data. Default value (FALSE) outputs lowercase hexits.

Rückgabewerte

Returns a string containing the calculated message digest as lowercase hexits unless raw_output is set to true in which case the raw binary representation of the message digest is returned.

Beispiele

Beispiel #1 hash_hmac() example


<?php
echo hash_hmac('ripemd160', 'The quick brown fox jumped over the lazy dog.', 'secret');
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

b8e7ae12510bdfb1812e463a7f086122cf37e4f7

Siehe auch

hash() - Generate a hash value (message digest)
hash_init() - Initialize an incremental hashing context
hash_hmac_file() - Generate a keyed hash value using the HMAC method and the contents of a given file