mhash

Function • Deprecated in PHP 8.1

Computes hash.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
Deprecated
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5

mhash Function synopsis

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

Parameters

$algo

Typeint

The hash ID. One of the MHASH_* constants.

$data

Typestring

The user input, as a string.

$key

OptionalType?stringDefault valuenull

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 value

Typestring|false

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

Changes to the mhash Function

PHP 8.1

  • Function deprecated

PHP 8.0

  • Return type added: string|false
  • Parameter name of parameter #1 changed: $hash to $algo
  • Parameter type added for parameter #1 ($algo): int
  • Parameter type added for parameter #2 ($data): string
  • Parameter type added for parameter #3 ($key): ?string
  • Parameter default value added for position #3 ($key): null
  mhash(
-     $hash,
+     int $algo,
-     $data,
+     string $data,
-     $key
+     ?string $key = null
-   )
+   ): string|false

mhash Function Availability

PHP VersionAvailability
PHP 8.5Future Release Yes Deprecated
PHP 8.4Upcoming Release Yes Deprecated
PHP 8.3Supported (Latest) Yes Deprecated
PHP 8.2Supported Yes Deprecated
PHP 8.1Security-Fixes Only Yes Deprecated
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes