(PHP 5)
DOMImplementation::createDocument — Creates a DOMDocument object of the specified type with its document element
Creates a DOMDocument object of the specified type with its document element.
The namespace URI of the document element to create.
The qualified name of the document element to create.
The type of document to create or NULL.
A new DOMDocument object. If namespaceURI, qualifiedName, and doctype are null, the returned DOMDocument is empty with no document element
Raised if doctype has already been used with a different document or was created from a different implementation.
Raised if there is an error with the namespace, as determined by namespaceURI and qualifiedName.
This method may be called statically, but will issue an E_STRICT error.
To add on to the other example, here's how to create an XHTML 1.0 transitional document with head, title, and body elements.
<?php
$document = DOMImplementation::createDocument(null, 'html',
DOMImplementation::createDocumentType("html",
"-//W3C//DTD XHTML 1.0 Transitional//EN",
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"));
$document->formatOutput = true;
$html = $document->documentElement;
$head = $document->createElement('head');
$title = $document->createElement('title');
$text = $document->createTextNode('Title of Page');
$body = $document->createElement('body');
$title->appendChild($text);
$head->appendChild($title);
$html->appendChild($head);
$html->appendChild($body);
echo $document->saveXML();
?>
This outputs: (http links removed due to spam)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "doctype.dtd">
<html xmlns="w3org1999xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Title of Page</title>
</head>
<body></body>
</html>
Note the saveXML function. If saveHTML was used instead, you get the output:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "doctype.dtd">
<html>
<head><title>Title of Page</title></head>
<body></body>
</html>
To create HTML document with doctype:
<?php
$doctype = DOMImplementation::createDocumentType("html",
"-//W3C//DTD HTML 4.01//EN",
"http://www.w3.org/TR/html4/strict.dtd");
$doc = DOMImplementation::createDocument(null, 'html', $doctype);
?>