xdiff_string

Manual de PHP
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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.

Ejemplo 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.

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