PHP | DOMImplementation __construct() Function

<?php

// Create a DOMImplementation instance
$documentImplementation = new DOMImplementation();

// Create a document
$document = $documentImplementation->createDocument(null, 'html');

// Get the document element
$html = $document->documentElement;

// Create few element
$heading = $document->createElement('h1');
$text = $document->createTextNode('GeeksforGeeks');

// Append the children
$heading->appendChild($text);
$html->appendChild($heading);

// Render the XML
echo $document->saveXML();
?>

<?php
// Create a DOMImplementation instance
$documentImplementation = new DOMImplementation();

// Create a document
$document = $documentImplementation->createDocument(null, 'html');

// Get the document element
$html = $document->documentElement;

// Create few element
$head = $document->createElement('head');
$title = $document->createElement('title');
$text = $document->createTextNode('GeeksforGeeks');
$body = $document->createElement('body');

// Append the children
$title->appendChild($text);
$head->appendChild($title);
$html->appendChild($head);
$html->appendChild($body);

// Render the XML
echo $document->saveXML();
?>