Question

I am trying to reformat XML adding intermediate level node.

Here is what I have as input:

<channel>
<item>
<title>Advanced PHP Book</title>
</item>
<item>
<title>MySQL primer</title>
</item>
<item>
<title>C++ for beginners</title>
</item>
</channel>

I need it to be like that at the end (page node added between channel and item):


<channel>
<page>
<item>
<title>Advanced PHP Book</title>
</item>
<item>
<title>MySQL primer</title>
</item>
<item>
<title>C++ for beginners</title>
</item>
</page>
</channel>


Here is my testing code:

$sxe = simplexml_load_string($string);

$dom_sxe = dom_import_simplexml($sxe);

$dom = new DOMDocument('1.0');

$channel = $dom->appendChild($dom->createElement('channel'));

$page = $channel->appendChild($dom->createElement('page'));

$dom_sxe = $dom->importNode($dom_sxe, true);
$dom_sxe = $page->appendChild($dom_sxe);

$dom->formatOutput = true;

echo $dom->saveXML(); 

The problem I have is that channel element is doubled.
Please help.

Answer 1

I don’t think this should be too hard: I think you’re overcomplicating it by using the simplexml stuff.

$dom = new DOMDocument;
$dom->loadXML($string);

// create the <page> element
$page = $dom->createElement('page');

while ($dom->firstChild->firstChild) {
    // move the items in <channel> to the <page> element
    $page->appendChild($dom->firstChild->firstChild);
}

// insert the <page> element into <channel>
$dom->firstChild->appendChild($page);
$dom->saveXML();