Inbalance of ()
<p>For some reason I'm receiving a syntax error for the following line with an imbalance of parenthesis and I don't see the reason.</p>

<pre><code>if(isset($this-&gt;uri-&gt;segment(3)) AND ((empty($this-&gt;uri-&gt;segment(3))||($this-&gt;uri-&gt;segment(3) === FALSE)||(trim($this-&gt;uri-&gt;segment(3)) == '')))
</code></pre>
