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The DOMDocument class

Introduction

(PHP 5, PHP 7)

Represents an entire HTML or XML document; serves as the root of the document tree.

Class synopsis

DOMDocument extends DOMNode {

/* Properties */

public readonly string $actualEncoding ;

public readonly DOMConfiguration $config ;

public readonly DOMDocumentType $doctype ;

public readonly DOMElement $documentElement ;

public string|null $documentURI ;

public string $encoding ;

public bool $formatOutput ;

public readonly DOMImplementation $implementation ;

public bool $preserveWhiteSpace = true ;

public bool $recover ;

public bool $resolveExternals ;

public bool $standalone ;

public bool $strictErrorChecking = true ;

public bool $substituteEntities ;

public bool $validateOnParse = false ;

public string $version ;

public readonly string|null $xmlEncoding ;

public bool $xmlStandalone ;

public string $xmlVersion ;

/* Inherited properties */

public readonly string $nodeName ;

public string $nodeValue ;

public readonly int $nodeType ;

public readonly DOMNode|null $parentNode ;

public readonly DOMNodeList $childNodes ;

public readonly DOMNode|null $firstChild ;

public readonly DOMNode|null $lastChild ;

public readonly DOMNode|null $previousSibling ;

public readonly DOMNode|null $nextSibling ;

public readonly DOMNamedNodeMap|null $attributes ;

public readonly DOMDocument|null $ownerDocument ;

public readonly string|null $namespaceURI ;

public string $prefix ;

public readonly string $localName ;

public readonly string|null $baseURI ;

public string $textContent ;

/* Methods */

public __construct ([ string $version [, string $encoding ]] )

public createAttribute ( string $name ) : DOMAttr

public createAttributeNS ( string $namespaceURI , string $qualifiedName ) : DOMAttr

public createCDATASection ( string $data ) : DOMCDATASection

public createComment ( string $data ) : DOMComment

public createDocumentFragment ( ) : DOMDocumentFragment

public createElement ( string $name [, string $value ] ) : DOMElement

public createElementNS ( string $namespaceURI , string $qualifiedName [, string $value ] ) : DOMElement

public createEntityReference ( string $name ) : DOMEntityReference

public createProcessingInstruction ( string $target [, string $data ] ) : DOMProcessingInstruction

public createTextNode ( string $content ) : DOMText

public getElementById ( string $elementId ) : DOMElement

public getElementsByTagName ( string $name ) : DOMNodeList

public getElementsByTagNameNS ( string $namespaceURI , string $localName ) : DOMNodeList

public importNode ( DOMNode $importedNode [, bool $deep = false ] ) : DOMNode

public load ( string $filename [, int $options = 0 ] ) : mixed

public loadHTML ( string $source [, int $options = 0 ] ) : bool

public loadHTMLFile ( string $filename [, int $options = 0 ] ) : bool

public loadXML ( string $source [, int $options = 0 ] ) : mixed

public normalizeDocument ( ) : void

public registerNodeClass ( string $baseclass , string $extendedclass ) : bool

public relaxNGValidate ( string $filename ) : bool

public relaxNGValidateSource ( string $source ) : bool

public save ( string $filename [, int $options = 0 ] ) : int

public saveHTML ([ DOMNode $node = NULL ] ) : string

public saveHTMLFile ( string $filename ) : int

public saveXML ([ DOMNode $node [, int $options = 0 ]] ) : string

public schemaValidate ( string $filename [, int $flags = 0 ] ) : bool

public schemaValidateSource ( string $source [, int $flags ] ) : bool

public validate ( ) : bool

public xinclude ([ int $options = 0 ] ) : int

/* Inherited methods */

public DOMNode::appendChild ( DOMNode $newnode ) : DOMNode

public DOMNode::C14N ([ bool $exclusive [, bool $with_comments [, array $xpath [, array $ns_prefixes ]]]] ) : string|false

public DOMNode::C14NFile ( string $uri [, bool $exclusive = false [, bool $with_comments = false [, array $xpath [, array $ns_prefixes ]]]] ) : int|false

public DOMNode::cloneNode ([ bool $deep ] ) : DOMNode

public DOMNode::getLineNo ( ) : int

public DOMNode::getNodePath ( ) : string

public DOMNode::hasAttributes ( ) : bool

public DOMNode::hasChildNodes ( ) : bool

public DOMNode::insertBefore ( DOMNode $newnode [, DOMNode $refnode ] ) : DOMNode

public DOMNode::isDefaultNamespace ( string $namespaceURI ) : bool

public DOMNode::isSameNode ( DOMNode $node ) : bool

public DOMNode::isSupported ( string $feature , string $version ) : bool

public DOMNode::lookupNamespaceUri ( string $prefix ) : string

public DOMNode::lookupPrefix ( string $namespaceURI ) : string

public DOMNode::normalize ( ) : void

public DOMNode::removeChild ( DOMNode $oldnode ) : DOMNode

public DOMNode::replaceChild ( DOMNode $newnode , DOMNode $oldnode ) : DOMNode

}

Properties

actualEncoding: Deprecated. Actual encoding of the document, is a readonly equivalent to encoding.
config: Deprecated. Configuration used when DOMDocument::normalizeDocument() is invoked.
doctype: The Document Type Declaration associated with this document.
documentElement: This is a convenience attribute that allows direct access to the child node that is the document element of the document.
documentURI: The location of the document or null if undefined.
encoding: Encoding of the document, as specified by the XML declaration. This attribute is not present in the final DOM Level 3 specification, but is the only way of manipulating XML document encoding in this implementation.
formatOutput: Nicely formats output with indentation and extra space. This has no effect if the document was loaded with preserveWhitespace enabled.
implementation: The DOMImplementation object that handles this document.
preserveWhiteSpace: Do not remove redundant white space. Default to true. Setting this to false has the same effect as passing LIBXML_NOBLANKS as option to DOMDocument::load() etc.
recover: Proprietary. Enables recovery mode, i.e. trying to parse non-well formed documents. This attribute is not part of the DOM specification and is specific to libxml.
resolveExternals: Set it to true to load external entities from a doctype declaration. This is useful for including character entities in your XML document.
standalone: Deprecated. Whether or not the document is standalone, as specified by the XML declaration, corresponds to xmlStandalone.
strictErrorChecking: Throws DOMException on errors. Default to true.
substituteEntities: Proprietary. Whether or not to substitute entities. This attribute is not part of the DOM specification and is specific to libxml.

Caution
Enabling entity substitution may facilitate XML External Entity (XXE) attacks.
validateOnParse: Loads and validates against the DTD. Default to false.
version: Deprecated. Version of XML, corresponds to xmlVersion.
xmlEncoding: An attribute specifying, as part of the XML declaration, the encoding of this document. This is null when unspecified or when it is not known, such as when the Document was created in memory.
xmlStandalone: An attribute specifying, as part of the XML declaration, whether this document is standalone. This is false when unspecified.
xmlVersion: An attribute specifying, as part of the XML declaration, the version number of this document. If there is no declaration and if this document supports the "XML" feature, the value is "1.0".

Notes

Note:

The DOM extension uses UTF-8 encoding. Use utf8_encode() and utf8_decode() to work with texts in ISO-8859-1 encoding or iconv for other encodings.

Note:

When using json_encode() on a DOMDocument object the result will be that of encoding an empty object.