xdiff_string_patch

(PECL)

xdiff_string_patch --  Patch a string with an unified diff

Description

string xdiff_string_patch ( string str, string patch [, int flags [, string &error]] )

xdiff_string_patch() patches string str with unified patch in string patch.

flags can be either XDIFF_PATCH_NORMAL (default mode, normal patch) or XDIFF_PATCH_REVERSE (reversed patch).

If error is passed then rejected parts are stored inside this variable.

Example 1. xdiff_string_patch() example

The following code applies changes to some article.

<?php
$old_article 
file_get_contents('./old_article.txt');
$diff $_SERVER['patch']; /* Let's say that someone pasted a patch to html form */

$errors '';

$new_article xdiff_string_patch($old_article$diffXDIFF_PATCH_NORMAL$errors);
if (
is_string($new_article)) {
    echo 
"New article:\n";
    echo 
$new_article;
}

if (
strlen($errors)) {
    echo 
"Rejects: \n";
    echo 
$errors;
}

?>

Returns a patched string.

See also xdiff_file_patch().