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PHP xdiff_file_rabdiff

PHP original manual for xdiff_file_rabdiff [ show | php.net ]

xdiff_file_rabdiff

(PECL xdiff >= 1.5.0)

xdiff_file_rabdiff — Make binary diff of two files using the Rabin's polynomial fingerprinting algorithm

Description

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.

Parameters

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.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #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');
?>

Notes

Note:

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

See Also