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(PHP 5)
DOMNode::cloneNode — Clones a node
Indicates whether to copy all descendant nodes. This parameter is defaulted to FALSE.
The cloned node.
If you need some function to clone a node without touching namespaces you can use the following.
<?php
private function cloneNode($node,$doc){
$nd=$doc->createElement($node->nodeName);
foreach($node->attributes as $value)
$nd->setAttribute($value->nodeName,$value->value);
if(!$node->childNodes)
return $nd;
foreach($node->childNodes as $child) {
if($child->nodeName=="#text")
$nd->appendChild($doc->createTextNode($child->nodeValue));
else
$nd->appendChild(cloneNode($child,$doc));
}
return $nd;
}
?>
<?php
//@oliver thanks for example source...
/*
cloneNode(false) does not omit
Attributes of cloned node,
to achieve this an iteration is required.
this is probably less efficient
than merely creating a new
node from the desired nodeName
but in some cases could be useful.
use case:
omit subnodes and attributes of
secured portions of an xml document
without altering expected general structure;
*/
//xml to use
$file="<?xml version='1.0'?>
<book type='paperback'>
<title name='MAP'>Red Nails</title>
<price>$12.99</price>
<author>
<name first='Robert' middle='E' last='Howard'/>
<birthdate disco='false' nirvana='definitely'>
9/21/1977
<month title='september' />
</birthdate>
</author>
<author>
<name first='Arthur' middle='Mc' last='Kayn'/>
</author>
</book>";
$doc = new domDocument;
$doc->loadXML($file);
$xpath = new domXPath($doc);
$query = "//author/birthdate";
$xpathQuery = $xpath->query($query);
//would be a loop in production code...
$child = $xpathQuery->item(0);
$parent = $child->parentNode;
$doppel = $child->cloneNode(false);
$limit = $doppel->attributes->length;
for ($a=0;$a<$limit;$a++) {
$doppel->removeAttributeNode($doppel->attributes->item(0));
}
//swap for now empty node
$parent->replaceChild( $doppel, $child);
print $doc->saveXML();
?>
simple exemple of node cloning
<?xml version="1.0"?>
<book type="paperback">
<title name='MAP'>Red Nails</title>
<price>$12.99</price>
<author>
<name first="Robert" middle="E" last="Howard"/>
<birthdate>9/21/1977</birthdate>
</author>
<author>
<name first="Arthur" middle="Mc" last="Kayn"/>
</author>
</book>
<?php
//filename xml file to use
$file = 'book.xml';
$doc = new domDocument;
if (file_exists($file)) {
$doc->load($file);
} else {
exit('Erreur !.');
}
$xpath = new domXPath($doc);
$query = "//author/*";
$xpathQuery = $xpath->query($query);
$size = $xpathQuery->length;
for ($i=0; $i<$size; $i++){
$node = $xpathQuery->item($i);
if ($node->nodeName == 'birthdate' && $node->hasChildNodes() && $node->firstChild->textContent != ''){
$clonenode = $node->cloneNode(true);
$refnode = $node;
}
}
for ($i=0; $i<$size; $i++){
$node = $xpathQuery->item($i);
if (!$node->isSameNode($refnode)){
$newnode = $node->appendChild($clonenode);
}
}
print $doc->saveXML();
?>
For those converting from PHP 4 DOM XML to PHP 5 DOM extension:
In the old days, DOM XML's clone_node() was the way to copy nodes from one DOM to another, as well as to perform intra-DOM copies. Nowadays, DOM's cloneNode() is the intra-DOM solution, but see importNode() (http://php.net/dom-domdocument-importnode) to copy nodes from one DOM to another.
So to append root node of $dom2 and all its children into root node of $dom1:
PHP 4 (DOM XML):
<?php
$root1 = $dom1->document_element();
$other_node = $dom2->document_element();
$root1->append_child($other_node->clone_node(true));
?>
PHP 5 (DOM):
<?php
$dom1->documentElement->appendChild(
$dom1->importNode($dom2->documentElement, true));
?>
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