mhash

(PHP 4, PHP 5)

mhash — Compute hash

Description

string mhash ( int $hash , string $data [, string $key ] )

mhash() applies a hash function specified by hash to the data.

Parameters

hash

The hash id. One of the MHASH_XXX constants.

data

The user input, as a string.

key

If specified, the function will return the resulting HMAC instead. HMAC is keyed hashing for message authentication, or simply a message digest that depends on the specified key. Not all algorithms supported in mhash can be used in HMAC mode.

Return Values

Returns the resulting hash (also called digest) or HMAC as a string, or FALSE on errors.