xdiff_string_patch

xdiff_string_patch

Patch a string with an unified diff

string **xdiff_string_patch** string $str string $patch int $flags string $error

Patches a string with an unified patch in parameter and returns the result. has to be an unified diff created by / function. An optional parameter specifies mode of operation. Any rejected parts of the patch will be stored inside variable if it is provided. str``patch``patch``xdiff_file_diff``xdiff_string_diff``flags``error

strThe original string.

patch The unified patch string. It has to be created using , functions or compatible tools. xdiff_string_diff``xdiff_file_diff

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

   Starting from version 1.5.0, you can also use binary OR to enable
    flag.
  `XDIFF_PATCH_IGNORESPACE`

errorIf provided then rejected parts are stored inside this variable.

Returns the patched string, or false on error.

Voorbeeld: 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;
}

?>

xdiff_string_diff