hash_file

(PHP 5 >= 5.1.2, PECL hash:1.1-1.5)

hash_fileGenerate a hash value using the contents of a given file

Description

string hash_file ( string $algo , string $filename [, 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.

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 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');
?>

The above example will output:

5c6ffbdd40d9556b73a21e63c3e0e904


    

 

 

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