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

설명

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

인수

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.
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 Using hash_file()


<?php
/* Create a file to calculate hash of */
file_put_contents('example.txt', 'The quick brown fox jumped over the lazy dog.');

echo hash_file('md5', 'example.txt');
?>

위 예제의 출력:

5c6ffbdd40d9556b73a21e63c3e0e904

참고

hash() - Generate a hash value (message digest)
hash_hmac_file() - Generate a keyed hash value using the HMAC method and the contents of a given file
hash_update_file() - Pump data into an active hashing context from a file
md5_file() - 주어진 파일의 md5 해시를 계산
sha1_file() - 파일의 sha1 해시를 계산