PHP-Handbuch: Make binary diff of two files using the Rabin's polynomial fingerprinting algorithm

Beschreibung

bool xdiff_file_rabdiff ( string $old_file , string $new_file , string $dest )

Makes a binary diff of two files and stores the result in a patch file. The difference between this function and xdiff_file_bdiff is different algorithm used which should result in faster execution and smaller diff produced. This function works with both text and binary files. Resulting patch file can be later applied using xdiff_file_bpatch/xdiff_string_bpatch.

For more details about differences between algorithm used please check » libxdiff website.

Parameter-Liste

old_file: Path to the first file. This file acts as "old" file.
new_file: Path to the second file. This file acts as "new" file.
dest: Path of the resulting patch file. Resulting file contains differences between "old" and "new" files. It is in binary format and is human-unreadable.

Rückgabewerte

Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.

Beispiele

Beispiel #1 xdiff_file_rabdiff example

The following code makes binary diff of two archives.


<?php
$old_version = 'my_script_1.0.tgz';
$new_version = 'my_script_1.1.tgz';

xdiff_file_rabdiff($old_version, $new_version, 'my_script.bdiff');
?>

Anmerkungen

Hinweis:
Both files will be loaded into memory so ensure that your memory_limit is set high enough.

Siehe auch

xdiff_file_bpatch