How can I generate PHP documentation using phpdoc or similar application under Netbeans 7.0?

I've just wondering is there any possibility to generate a PHP documentation with phpdoc or any similar application under Netbeans 7.0 at Ubuntu for PHP project, which has classes used like in 开发者_StackOverflow中文版java, something like

class tech.lib.facade.Html extends tech.lib.facade.Builder { ...

when I'm using phpdoc with normal way it doesn't create any connections and doesn't generate any methods from classes.

Is there any way to configure this?