php 한글 메뉴얼 도움말 검색 사이트 Generate a keyed hash value using the HMAC method and the contents of a given file [function.hash-hmac-file]

설명

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

인수

algo: Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..) See hash_algos() for a list of supported algorithms.
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. FALSE outputs lowercase hexits.

반환값

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.

예제

Example #1 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');
?>

위 예제의 출력:

7eb2b5c37443418fc77c136dd20e859c

참고

hash_algos() - Return a list of registered hashing algorithms
hash_hmac() - Generate a keyed hash value using the HMAC method
hash_file() - Generate a hash value using the contents of a given file