The DOMEntity class DOMElement::setIdAttributeNS DOMEntityReference DOM PHP Manual The DOMEntity class Introduction This interface represents a known entity, either parsed or unparsed, in an XML document. Class synopsis DOMEntity DOMEntity extends DOMNode { /* Properties */ readonly public string $publicId ; readonly public string $systemId ; readonly public string $notationName ; public string $actualEncoding ; readonly public string $encoding ; readonly public string $version ; /* Inherited methods */ DOMNode DOMNode::appendChild ( DOMNode $newnode ) DOMNode DOMNode::cloneNode ([ bool $deep ] ) bool DOMNode::hasAttributes ( void ) bool DOMNode::hasChildNodes ( void ) DOMNode DOMNode::insertBefore ( DOMNode $newnode [, DOMNode $refnode ] ) bool DOMNode::isDefaultNamespace ( string $namespaceURI ) bool DOMNode::isSameNode ( DOMNode $node ) bool DOMNode::isSupported ( string $feature , string $version ) string DOMNode::lookupNamespaceURI ( string $prefix ) string DOMNode::lookupPrefix ( string $namespaceURI ) void DOMNode::normalize ( void ) DOMNode DOMNode::removeChild ( DOMNode $oldnode ) DOMNode DOMNode::replaceChild ( DOMNode $newnode , DOMNode $oldnode ) } Properties publicId The public identifier associated with the entity if specified, and NULL otherwise. systemId The system identifier associated with the entity if specified, and NULL otherwise. This may be an absolute URI or not. notationName For unparsed entities, the name of the notation for the entity. For parsed entities, this is NULL. actualEncoding An attribute specifying the encoding used for this entity at the time of parsing, when it is an external parsed entity. This is NULL if it an entity from the internal subset or if it is not known. encoding An attribute specifying, as part of the text declaration, the encoding of this entity, when it is an external parsed entity. This is NULL otherwise. version An attribute specifying, as part of the text declaration, the version number of this entity, when it is an external parsed entity. This is NULL otherwise. DOMElement::setIdAttributeNS DOMEntityReference DOM PHP Manual