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.