How to get the first row of a result in Yii2? (queryRow Equivalent)

how can i get the first row of result? Below is my code which is giving me an error like this




Undefined index: module







if ( substr( $action, 0, 4 ) === "stl_" )

                {

                    $query  = "SELECT * FROM a_actions LEFT JOIN a_modules ON ( a_modules.id=a_actions.module_id )

    						WHERE a_actions.id=(SELECT dependency FROM a_actions WHERE action='{$action}') AND a_modules.module_status = 1 ";

                    $action = \Yii::$app->db->createCommand( $query )

                                            ->queryAll();

    //print_r($action);die();

                    $module = $action[ 'module' ];

                    $action = $action[ 'action' ];

                }




$action has value




Array ( [0] => Array ( [id] => 7 [module_id] => 7 [action] => index [label] => Members [dependency] => [created_by] => [created_at] => [updated_by] => [updated_at] => [is_deleted] => 0 [module] => members [module_name] => [module_status] => 1 ) )



in Yii1 i would have used




  $action = \Yii::$app->db->createCommand( $query )

                                            ->queryRow();

$action is an array of rows

Either use


queryOne()

or


$action[0]['module']