Yii1.1. How to fill a table cell with multiple values ​​in CGridView? Or how to make multiple cells of one column per cell of another?

Question

Yii

Given: the two tables of the table "firsts" and "seconds" are in the relationships "firsts" has_many "seconds" by the key "first_id".
I am trying to display the data of both tables in a CGridView. I want all the cells of the "name" column from the database to be placed in the "Seconds" column of the CGridView, and not just one. How to do it?

$Firsts = new CActiveDataProvider('firsts', array(
          'criteria'=>array(
              'with'=>array('seconds')
            ),
        ));
      $this->widget('zii.widgets.grid.CGridView', Array(
          'dataProvider'=>$Firsts,
            'columns'=>Array(
                'name',
                'phone',
                array(
                    'name'=>'Seconds',
                    'value'=>'$data->seconds[0]->name'
                )
            )));

Does CGridView basically make the contents of one CGridView table cell into multiple table cells from the database?