Php 5.4 closures
<pre><code>$that = $this;
$closure = function (...) use ($that) { ... };
</code></pre>

<p>Found on: <a href="http://css.dzone.com/polls/what-new-feature-php-54" rel="nofollow">http://css.dzone.com/polls/what-new-feature-php-54</a></p>

<p>Could someone please explain what it does? Preferably with an example.</p>
