Generate a hash value (message digest)

Descrição

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

Parâmetros

algo: Name of selected hashing algorithm (e.g. "sha256"). For a list of supported algorithms see hash_algos().
data: Message to be hashed.
binary: When set to true, outputs raw binary data. false outputs lowercase hexits.
options: An array of options for the various hashing algorithms. Currently, only the "seed" parameter is supported by the MurmurHash variants.

Valor Retornado

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.

Registro de Alterações

Versão	Descrição
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.

Exemplos

Example #1 A hash() example

<?php
echo hash('sha256', 'The quick brown fox jumped over the lazy dog.');
?>

O exemplo acima produzirá:

68b1282b91de2c054c36629cb8dd447f12f096d3e3c587978dc2248444633483

Veja Também

hash_init() - Initialize an incremental hashing context
hash_file() - Generate a hash value using the contents of a given file
hash_hmac() - Generate a keyed hash value using the HMAC method