The phpDocumentor tool is a standalone auto-documentor similar to JavaDoc written in PHP. It differs from PHPDoc in that it is MUCH faster, parses a much wider range of PHP files, and comes with many customizations including 11 HTML templates, Windows help file CHM output, PDF output, and XML DocBook output that is compatible with the markup used in this manual. In addition, it can do PHPXref source code highlighting and linking.