PHP | DOMNode cloneNode() function

Last Updated : 25 Feb, 2020

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 
// 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 
// 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(); 
?> 