title: Echo specific value in array inside another array
body: <p>I'm trying to echo specific value in array inside another array.</p>
  
  <pre><code> array (size=5)
        'answer' =&gt; string 'February12' (length=10)
        'submitted' =&gt; 
          array (size=3)
            'full_name' =&gt; string 'Sander' (length=6)
            'age' =&gt; string '20' (length=2)
            'email' =&gt; string 'brtwers@fze.com' (length=15)
        'why' =&gt; string 'sfsdf' (length=5)
        'games' =&gt; string 'zefzef' (length=6)
        'help' =&gt; string 'zerzer' (length=6)
  </code></pre>
  
  <p>For example I want the value from email.</p>
  
  <p>This is the result of a post so I was thinking something like this</p>
  
  <pre><code>echo $_POST['submitted['email']']; 
  </code></pre>
  
  <p>but that is not working. What should be the correct syntax?</p>