ZF2: Define empty array in XML configuration file

Question

I have set up my application to use a module configuration xml, by following this example.

Now I need to define an empty array for one configuration key. The equivalent php configuration file would be:

<?php
return array (
  //...the other configurations
  'sample' => array(
    'empty' => array()
  )
);

I can't figure out how to build this in xml. If I try the following xml the parser returns me an empty string, but I need an empty array.

<?xml version="1.0" encoding="UTF-8"?>
<zend-config>
    <!-- ...the other configurations -->
    <sample>
        <empty></empty>
    </sample>
</zend-config>

Is there an option where i can force Zend\Config\Factory to return an array instead of a string?

Answer 1

You mean this?

<zend-config>
    <sample>
        <empty/>
    </sample>
</zend-config>