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# mhash

(3.0.9 - 3.0.18 only, PHP 4 >= 4.0.0)

mhash -- Compute hash

## Description

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

mhash() applies a hash function specified by `hash` to the `data` and returns the resulting hash (also called digest). If the `key` is specified it will return the resulting HMAC. 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. In case of an error returns `FALSE`.

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