ZF2 Form Element Data Attributes

Question

This is more than likely going to be straight forward, or convoluted, but here goes...

How do you add a data attribute to a form element?

Answer 1

Simply:

$element->setAttribute('data', 'somedata');

Answer 2

Kicking myself right now!

Just remembered I'd already done it previously.

...
'attributes' => array(
    ...
    'data-xxx' => '',
    ...
),

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