PHP | DOMNode cloneNode() function

Last Updated : 25 Feb, 2020
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The DOMNode::cloneNode() function is an inbuilt function in PHP which is used to create a copy of the node. Syntax: 
DOMNode DOMNode::cloneNode( bool $deep )
Parameters:This function accepts a single parameter $deep which indicates whether to copy all descendant nodes. This parameter is set to FALSE by default. Return Value: This function returns the cloned node. Program 1: php 
<?php
// Create a DOMDocument
$doc = new DOMDocument();

// Load XML
$doc->loadXML('<html></html>');

// Create an heading element on DOMDocument object
$h1 = $doc->createElement('h1', "geeksforgeeks");

// Append the child
$doc->documentElement->appendChild($h1);

// Create a new DOMDocument
$doc_new = new DOMDocument();

// Deep clone the node to new instance
$doc_new = $doc->cloneNode(true);

// Render the cloned instance
echo $doc_new->saveXML();
?>
Output: Program 2: php 
<?php
// Create a DOMDocument
$doc = new DOMDocument('1.0', 'iso-8859-1');

// Load XML
$doc->loadXML('<html></html>');

// Create an heading element on DOMDocument object
$h1 = $doc->createElement('h1', "geeksforgeeks");

// Append the child
$doc->documentElement->appendChild($h1);

// Shallow clone the node to a new instance
// It will clone only the instance not its
// children nodes
$doc_new = $doc->cloneNode(false);

// Render the cloned instance
echo $doc_new->saveXML();
?>
Output: Press Ctrl + U to see the DOM Reference: https://www.php.net/manual/en/domnode.clonenode.php

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