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    <p>Ok I see what happens. there´s an issue between cakePHP query result array construction and the form that the xml helper expect to see it for a proper creation of the xml file. For example you construct an array for get all your posts (<code>$posts = $this-&gt;Post-&gt;find('all');</code>)</p> <p>This is what you get:</p> <pre><code> $posts = array( 'post' =&gt; array( array( 'id' =&gt; '1', 'tittle' =&gt; 'The title' ), array( 'id' =&gt; '2', 'tittle' =&gt; 'A title once again' ) ) ); </code></pre> <p>this what an instruction like <code>$xml = Xml::build($xmlPosts);</code> on cakePHP expect on, for example, in a index.ctp file under your xml folder, inside View/Posts:</p> <pre><code>$posts = array( 'posts' =&gt; array( 'post' =&gt; array( array( 'id' =&gt; '1', 'tittle' =&gt; 'The title' ), array( 'id' =&gt; '2', 'tittle' =&gt; 'A title once again' ) ) ) ); $xml = Xml::build($post); </code></pre> <p>The problem yields in that with XML parser needs a root element in the array.</p> <p>the documentation on cakePHP dosen´t tell you that. So be careful on follow the example about REST services if you are a beginner on the cookbook. </p> <p>You can fix the issue doing so array rearrangement in the index.ctp xml constructor. Something like this:</p> <pre><code>&lt;?php $xmlPosts = array('posts' =&gt; array('post' =&gt; $posts)); $xml = Xml::build($xmlPosts); echo $xml-&gt;saveXML(); ?&gt; </code></pre> <p>I know is not the optimal solution. But I'm open to more thoughtful answers.</p>
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