Web студия "GrandView"

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.

Пример 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, $diff, XDIFF_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.