$outarray = array();

switch ($name) {
    case 'multi1':
        // return a non-empty array to print an empty line
        $outarray[] = array('dummy' => '');
        break;

    case 'multi2':
        // return a non-empty array to print an empty line
        $outarray[] = array('dummy' => '');
        break;

    case 'multi3':
        // return a non-empty array to print an empty line
        $outarray[] = array('dummy' => '');
        break;

    case 'multi4':
        // return a non-empty array to print an empty line
        $outarray[] = array('dummy' => '');
        break;

    .....

    default:
        // return a non-empty array to print an empty line
        $outarray[] = array('dummy' => '');
        break;
} // switch

return $outarray;