Elgg\FormsService::setFooter PHP Method

    public function setFooter($footer = '')
    {
        if (!$this->rendering) {
            $this->logger->error('Form footer can only be set and retrieved during form rendering, ' . 'anywhere in elgg_view_form() call stack (e.g. form view, extending views, or view hooks)');
            return false;
        }
        $this->footer = $footer;
        return true;
    }