JavaScript Editor Javascript debugger     Website design 


Compute hash (PHP 4, PHP 5)
string mhash ( int hash, string data [, string key] )

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



The hash id. One of the MHASH_XXX constants.


The user input, as a string.


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.