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mhash

(PHP 3 >= 3.0.9, PHP 4, PHP 5)

mhash -- Compute hash

说明

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

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

参数

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.

返回值

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



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