(PECL xdiff >= 0.2.0)
xdiff_file_diff — Make unified diff of two files
xdiff_file_diff ( string $old_file , string $new_file , string $dest [, int $context = 3 [, bool $minimal = false ]] ) : bool
Makes an unified diff containing differences between
new_file and stores it in
dest file. The resulting file is human-readable. An optional
context parameter specifies how many lines of context should be added around each change. Setting
minimal parameter to true will result in outputting the shortest patch file possible (can take a long time).
Path to the first file. This file acts as "old" file.
Path to the second file. This file acts as "new" file.
Path of the resulting patch file.
Indicates how many lines of context you want to include in diff result.
Set this parameter to
true if you want to minimalize size of the result (can take a long time).
true on success or
false on failure.
Example #1 xdiff_file_diff() example
The following code makes unified diff of two php files with context length of 2.
<?php $old_version = 'my_script.php'; $new_version = 'my_new_script.php'; xdiff_file_diff($old_version, $new_version, 'my_script.diff', 2); ?>
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.