Return Arreys

Using ChronoConnectivity v5
​
I have a code on CCv5 that only displays data for one user based on the username:

<?php
return array ('stuusername' => $this->data['stuusername']);
?>

The thing is now I also to sort based on a type of category so I tried adding:

<?php
return array ('stuusername' => $this->data['stuusername']);
and
('button11' => $this->data['Practice']);
?>

but that doesn't do anything.
​
I dont know much about PHP or any of that but can someone tell me how to run both codes and it work?
​
thank you