1) Database dependencies need to be moved to Phergie_Plugin_Source_Php_Local.
2) Error and exception handling should be improved in Phergie_Plugin_Source_Php_Local (see @todo items in the source)
3) A configuration setting should be added and Phergie_Plugin_Php modified to allow a different source class to be used.
4) Support should be added for class methods to supplement the existing function lookup functionality.
5) Also the php.net funcsummary.txt link is old. It's also in php.net SVN but the format will eventually change, so the parser will need updating. I'll work on this, and will update this report when ready. In the meantime: the CVS link is fine.