xdiff_file_diff
(PECL xdiff >= 0.2.0)
xdiff_file_diff — Make unified diff of two files
Description
string
$old_file,string
$new_file,string
$dest,int
$context = 3,bool
$minimal = false): bool
Makes an unified diff containing differences between old_file and
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).
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.
-
context -
Indicates how many lines of context you want to include in diff result.
-
minimal -
Set this parameter to
trueif you want to minimalize size of the result (can take a long time).
Return Values
Returns true on success or false on failure.
Examples
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);
?>
Notes
Note:
This function doesn't work well with binary files. To make diff of binary files use xdiff_file_bdiff()/xdiff_file_rabdiff() function.
