# The DOMImplementation class

(PHP 5, PHP 7)

## Introduction

The DOMImplementation class provides a number of methods for performing operations that are independent of any particular instance of the document object model.

## Class synopsis

DOMImplementation {
/* Properties */
/* Methods */
__construct ( )
public createDocument ([ string `$namespaceURI` = `NULL` [, string `$qualifiedName` = `NULL` [, DOMDocumentType `$doctype` = `NULL` ]]] ) : DOMDocument
public createDocumentType ([ string `$qualifiedName` = `NULL` [, string `$publicId` = `NULL` [, string `$systemId` = `NULL` ]]] ) : DOMDocumentType
public hasFeature ( string `$feature` , string `$version` ) : bool
}

## Table of Contents

- DOMImplementation::__construct — Creates a new DOMImplementation object
- DOMImplementation::createDocument — Creates a DOMDocument object of the specified type with its document element
- DOMImplementation::createDocumentType — Creates an empty DOMDocumentType object
- DOMImplementation::hasFeature — Test if the DOM implementation implements a specific feature