PMA\libraries\config\PageSettings::_processPageSettings PHP Method

    private function _processPageSettings(&$form_display, &$cf, &$error)
    {
        if ($form_display->process(false) && !$form_display->hasErrors()) {
            // save settings
            $result = PMA_saveUserprefs($cf->getConfigArray());
            if ($result === true) {
                // reload page
                header('Location: ' . $_SERVER['REQUEST_URI']);
                exit;
            } else {
                $error = $result;
            }
        }
    }