Which html code beautifier would work form CMS?

Question

Is there any open source HTML/XHTML source code beautifiers written in PHP?

By beautifier I mean library that correct white space indents and improve code readability and can be integrated with CMS.

Answer 1

Use Tidy, i use it for our Drupal Application, among Others:

http://php.net/manual/en/book.tidy.php

Answer 2

    $dom = new DOMDocument;
    $dom -> formatOutput = true;
    $dom -> substituteEntities = false;
    $dom -> recover = true;
    $dom -> strictErrorChecking = false;
    $dom -> loadHTML ( $file);
    echo $dom -> saveHTML ( $file);