title: Adding elements to last element of array
body: <p>If I have the following array. What would be the best way to add a element to <code>list[]</code> for the last element of <code>$myArray[]</code>?  Note that <code>list[]</code> has numerical indexes (i.e. not associative). Thanks!</p>
  
  <pre><code>$myArray[] = array( 'name' =&gt; 'hello', 'list' =&gt; array() );
  </code></pre>