PHP hash_hmac_file function

Like this blog? Consider exploring one of our sponsored banner ads...

hash_hmac_file

(no version information, might be only in CVS)

hash_hmac_file — Generate a keyed hash value using the HMAC method and the contents of a given fileDescriptionstring hash_hmac_file ( string algo, string filename, string key [, bool raw_output] )

Parameters

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.


Return Values

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.

Examples

Example 1. hash_hmac_file() example

/* 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');

The above example will output:

7eb2b5c37443418fc77c136dd20e859c

See Also

hash_hmac()hash_file()


About this entry

You’re currently reading “PHP hash_hmac_file function,” an entry on BRADINO

Published:
2.26.07 / 1am
Category:
PHP Functions
Tags: