uri = $uri; $this->ontology = $ontology; $this->fetch_label(); $this->fetch_flags(); } // end of member function __construct protected function fetch_label(){ return ""; } protected function fetch_flags(){ $this->flags = $this->ontology->get_flags($this->uri); } public function set_onto_name($onto_name){ $this->onto_name = $onto_name; } } // end of onto_common_root