Reinvio nuovamente il mio codice in maniera più umana.

Ecco il mio codice:
Codice PHP:
<?php
     $dom  
= new DomDocument();
     
$dom->load("articles.xml");      // writing to the DOM
     
$item $dom->createElement("item");
     
$title $dom->createElement("title");
     
$titletext $dom->createTextNode("XML in PHP5");
     
$title->appendChild($titletext);
     
$item->appendChild($title);
     
$dom->documentElement->appendChild($item);
    print 
$dom->saveXML();  ?>
Ed il file XML:
Codice PHP:
<?xml version="1.0" encoding="iso-8859-1" ?>
 <articles>
     <item>
           <title>PHP Weekly: Issue # 172</title>
           <link>[url]http://www.zend.com/zend/week/week172.php[/url]</link>
       </item>
     <item> 
          <title>Tutorial: Develop rock-solid code in PHP: Part three</title>
           <link>[url]http://www.zend.com/zend/tut/tut-hatwar3.php[/url]</link>
       </item>
 </articles>
gp