Strange text when converting XML array to XML
<p>Im using the answer to this question to convert an array of XML to a single XML output: </p>

<p><a href="http://stackoverflow.com/questions/2554671/output-array-of-xml-to-plain-xml">Output array of XML to plain XML</a></p>

<p>Im using the simpler solution of the two there (Marked as the answer)</p>

<p>It all works for me, however at the start of the output I get:</p>

<pre><code>string(109960) "
</code></pre>

<p>Can anyone shed any light on this?</p>
