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copied!<p>You can use any language that allows you to manipulate xml directly. I suggest finding something with DOM rather than SAX. If you use SAX you have to basically traverse the xml yourself - a pita in my experience. DOM allows you to act on the xml in a more OOP manner.</p> <p>Something that springs immediately to mind would be a wrapper xml around your xml "documents".</p> <p>So something like:</p> <pre><code><documents> <document>  </document> <document>  </document> <document>  </document> </documents> </code></pre> <p>The pseudo code would be: Create a document root. Add an element called documents, use that as the root. Iterate each of your xml files. For each file create a new element called document. Add that element to the parent. Load the xml from the file. Import that node into the outer document. Append the imported node into the document elements child collection.</p> <p><strong>EDIT</strong> As promised here is the updated code that was tested and I know works:</p> <pre><code><?php // Replace the strings below with the actual filenames, add or decrease as fit $filenames = array(0 => "test.xml", 1 => "test2.xml", 2 => "test3.xml" ); $docList = new DOMDocument(); $root = $docList->createElement('documents'); $docList->appendChild($root); foreach($filenames as $filename) { $doc = new DOMDocument(); $doc->load($filename); $xmlString = $doc->saveXML($doc->documentElement); $xpath = new DOMXPath($doc); $query = "//product"; // this is the name of the ROOT element $nodelist = $xpath->evaluate($query, $doc->documentElement); if( $nodelist->length > 0 ) { $node = $docList->importNode($nodelist->item(0), true); $xmldownload = $docList->createElement('document'); $xmldownload->setAttribute("filename", $filename); $xmldownload->appendChild($node); $root->appendChild($xmldownload); } } echo $docList->saveXML(); ?> </code></pre>

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