hash_hmac_file

(PHP 5 >= 5.1.2, PECL hash:1.1-1.3)

hash_hmac_file — Generate a keyed hash value using the HMAC method and the contents of a given file

Popis

string hash_hmac_file ( string $algo, string $filename, string $key [, bool $raw_output] )

Seznam parametrů

algo: Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..)
filename: URL describing location of file to be hashed; Supports fopen wrappers.
key: Shared secret key used for generating the HMAC variant of the message digest.
raw_output: When set to TRUE, outputs raw binary data. Default value (FALSE) outputs lowercase hexits.

Návratové hodnoty

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

Příklady

Příklad 682. hash_hmac_file() example


<?php

/* Create a file to calculate hash of */

file_put_contents('example.txt', 'The quick brown fox jumped over the lazy dog.');



echo hash_hmac_file('md5', 'example.txt', 'secret');

?>

Výše uvedený příklad vypíše:


7eb2b5c37443418fc77c136dd20e859c

Viz také

hash_hmac()

hash_file()

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hash_hmac

hash_final

Last updated: Sat, 24 Mar 2007