title: Convert stdClass array to simple array
body: <p>I am using <code>php 7.1</code> and have the following array:</p>
  
  <p><a href="https://i.stack.imgur.com/jOQSF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jOQSF.png" alt="enter image description here"></a></p>
  
  <p>However, I would simply like to have the following array:</p>
  
  <p><code>array(3808, 3807, 3806, 3805)</code></p>
  
  <p>Any suggestions how to convert it to array?</p>
  
  <p>Appreciate your replies!</p>