title: Merge new value on Laravel array request
body: <p>If I have all my input values on <code>$request-&gt;input('users')</code> how can I merge new one?</p>
  
  <p>Something like this:</p>
  
  <pre><code>$request-&gt;merge(['users.dob' =&gt; '2000']);
  </code></pre>
  
  <p>But obvious is not working.</p>