xdiff_file_patch
(PECL xdiff >= 0.2.0)
xdiff_file_patch — Patch a file with an unified diff
Description
$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.
Parameters
-
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) orXDIFF_PATCH_REVERSE(reversed patch).Starting from version 1.5.0, you can also use binary OR to enable
XDIFF_PATCH_IGNORESPACEflag.
Return Values
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.
Examples
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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Document created the 30/01/2003, last modified the 26/10/2018
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References
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