xdiff_string_diff

(PECL)

xdiff_string_diff -- Make unified diff of two strings

Description

string xdiff_string_diff ( string str1, string str2 [, int context [, bool minimal]] )

Makes a unified diff of two strings.

Parameters

str1

str2

context

Indicates how many lines of context you want to include in the diff result.

minimal

Set this parameter to TRUE if you want to minimalize the size of the diff (can take a long time).

Return Values

Returns string with result or FALSE if an internal error happened.

Examples

Example 1. xdiff_string_diff() example

The following code makes unified diff of two articles.

<?php
$old_article
= file_get_contents('./old_article.txt');
$new_article = $_REQUEST['article']; /* Let's say that someone pasted a new article to html form */

$diff = xdiff_string_diff($old_article, $new_article, 1);
if (
is_string($diff)) {
    echo
"Differences between two articles:\n";
    echo
$diff;
}

?>

Notes

Note: This function doesn't work well with binary strings. To make diff of binary strings use xdiff_string_diff_binary().


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