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hash

(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1)

hash — Generate a hash value (message digest)

Descrizione

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

Elenco dei parametri

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.

Valori restituiti

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.

Log delle modifiche

Versione Descrizione
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.

Esempi

Example #1 A hash() example

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

Il precedente esempio visualizzerà:

68b1282b91de2c054c36629cb8dd447f12f096d3e3c587978dc2248444633483

Vedere anche: