CRC64 checksum file for PHP

Question

I need to get a CRC64 checksum of files using PHP.

Using this code

file_put_contents('example.txt', 'just an example');

echo hash_file('crc32', 'example.txt');

I get a CRC32 checksum of "c8c429fe";

But I need to get the checksum using the CRC64 algorithm (

enter image description here )

How can I implement this hash algorithm in PHP?

+4

artaskerov Apr 20 '12 at 11:42

2 answers

Morfi · Answer 1 · 2013-04-05T10:40:17+0000

Implementing crc64 () on php 64bit

nyson · Answer 2 · 2012-04-20T11:52:33+0000

hash_file is just a shell that takes the result from file_get_contents ($ file) to the shell, so you can use any function instead of crc32.

crc64? , md5 sha , ,

$hash = hash_file("sha1", $file);

, crc64

function crc64($string){
    // your code here
}

$hash = hash_file("crc64", $file);