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PHP : Function Reference : xdiff Functions : xdiff_string_diff

xdiff_string_diff

Make unified diff of two strings (PECL xdiff:0.2-1.4)
string xdiff_string_diff ( string str1, string str2 [, int context [, bool minimal]] )

Example 2636. xdiff_string_diff() example

The following code makes unified diff of two articles.

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<?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;

}

?>

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