title: zend framework 3 ajax adjust select options
body: <p>I just started working with Zend Framework 3. I'm struggling with a more advanced issue.</p>
  
  <p>I have <code>selectlist one</code> with options 1 and 2</p>
  
  <p>And I have <code>selectlist two</code> with options 1, 2, 3 and 4.</p>
  
  <p>When option 1 is selected in <code>selectlist one</code> only option 1 and 2 have to be visible in <code>selectlist two</code>. When option 2 is selected, then option 3 and 4.</p>
  
  <p>How to do that in a Zend Form?</p>