(PECL xdiff >= 0.2.0)
xdiff_file_patch — Patch a file with an unified diff
xdiff_file_patch ( string $file , string $patch , string $dest [, int $flags = DIFF_PATCH_NORMAL ] ) : mixed
Patches a file with a patch and stores the result in a file. patch has to be an unified diff created by xdiff_file_diff()/xdiff_string_diff() function. An optional flags parameter specifies mode of operation.
file
The original file.
patch
The unified patch file. It has to be created using xdiff_string_diff(), xdiff_file_diff() functions or compatible tools.
dest
Path of the resulting file.
flags
Can be either XDIFF_PATCH_NORMAL (default mode, normal patch) or XDIFF_PATCH_REVERSE (reversed patch).
Starting from version 1.5.0, you can also use binary OR to enable XDIFF_PATCH_IGNORESPACE flag.
Returns false if an internal error happened, string with rejected chunks if patch couldn't be applied or true if patch has been successfully applied.
Example #1 xdiff_file_patch() example
The following code applies unified diff to a file.
<?php
$old_version = 'my_script-1.0.php';
$patch = 'my_script.patch';
$errors = xdiff_file_patch($old_version, $patch, 'my_script-1.1.php');
if (is_string($errors)) {
echo "Rejects:\n";
echo $errors;
}
?> Example #2 Patch reversing example
The following code reverses a patch.
<?php
$new_version = 'my_script-1.1.php';
$patch = 'my_script.patch';
$errors = xdiff_file_patch($new_version, $patch, 'my_script-1.0.php', XDIFF_PATCH_REVERSE);
if (is_string($errors)) {
echo "Rejects:\n";
echo $errors;
}
?>
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https://www.php.net/manual/en/function.xdiff-file-patch.php