mhash

(PHP 4, PHP 5, PHP 7, PHP 8)

mhash — Computes hash

警告

此函数自 PHP 8.1.0 起弃用。强烈建议不要应用此函数。

#[\Deprecated]
mhash(int $algo, string $data, ?string $key = null): string|false

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.

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

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