phpbb\notification\type\topic::get_title PHP Method

    public function get_title()
    {
        if ($this->get_data('post_username')) {
            $username = $this->get_data('post_username');
        } else {
            $username = $this->user_loader->get_username($this->get_data('poster_id'), 'no_profile');
        }
        return $this->user->lang($this->language_key, $username);
    }