Php/docs/function.mhash

• PHP Manual
• Mhash Functions
• Computes hash

mhash

(PHP 4, PHP 5, PHP 7)

mhash — Computes hash

Description

mhash ( int $algo , string $data [, string|null $key = NULL ] ) : string|false

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

Parameters

algo

The hash ID. One of the MHASH_hashname 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 error.

Changelog

Version	Description
8.0.0	key is now nullable.