PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1
hash - Generate a hash value (message digest)

hash( string$algo, string$data, [bool$binary = false], [array$options = []] ): string



Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..). For a list of supported algorithms see hash_algos.


Message to be hashed.


When set to true, outputs raw binary data. false outputs lowercase hexits.


An array of options for the various hashing algorithms. Currently, only the "seed" parameter is supported by the MurmurHash variants.

Return Values

Returns a string containing the calculated message digest as lowercase hexits unless binary is set to true in which case the raw binary representation of the message digest is returned.


Version Description
8.1.0 The options parameter has been added.
8.0.0 hash now throws a ValueError exception if algo is unknown; previously, false was returned instead.

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HASH Message Digest Framework Functions

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