mhash

Computes hash

Warning

This function has been DEPRECATED as of PHP 8.1.0. Relying on this function is highly discouraged.

stringfalse mhash(int $algo, string $data, stringnull $key = null)

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

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.

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

Version	Description
8.1.0	This function has been deprecated. Use the `hash_*()` functions instead.
8.0.0	`key` is now nullable.