(PHP 4, PHP 5)
mhash — Computes hash
$hash
, string $data
[, string $key
] )
mhash() applies a hash function specified by
hash to the data.
hash
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.
Returns the resulting hash (also called digest) or HMAC as a string, or
FALSE on error.