I want to store multiple values per computed field.
When creating editing a computed field the 'description' for 'Computed Code (PHP)' states:

For multi-value computed fields continue with $entity_field[1]['value'].

leading me to think I can store multiple values.
But when I do:

[0]['value'] = $var1;
$entity_field[1]['value'] = $var2;
$entity_field[2]['value'] = $var3;

the other 2 values don't get stored, no error but nothing in the DB and no documentation on how to retrieve. Am I misinterpreting the desciption or is it not working?