Syntax use Symfony\Component\Console\Helper\TableSeparator; $io->definitionList( ['Version' => '4.4.0'], ['Long-Term Support' => 'Yes'], new TableSeparator(), 'Timeline', ['End of maintenance' => '11/2022'], ['End of life' => '11/2023'] ); Output -------------------- --------- Version 4.4.0 Long-Term Support Yes -------------------- --------- Timeline End of maintenance 11/2022 End of life 11/2023 -------------------- ---------