title: How can I find the same objects between two arrays
body: <p>Consider the following arrays:</p>
  
  <pre><code>$users = 'igor', 'max', 'andrew'
  $server_admins = 'john', 'andrew', 'li', 'alex'
  </code></pre>
  
  <p>I need an alert if any member of <code>$users</code> is in <code>$server_admins</code>
  In example above it will be true because of 'andrew' from <code>$users</code></p>
  
  <p>Should I use <code>Compare-object</code>? Or not ? If yes - how ?</p>