XXIV. DOM Functions

Introducción

The DOM extension is the replacement for the domxml extension from PHP 4. The extension still contains many old functions, but they should no longer be used. In particular, functions that are not object-oriented should be avoided.

The extension allows you to operate on an XML document with the DOM API.

Constantes predefinidas

Estas constantes están definidas por esta extensión y estarán disponibles solamente cuando la extensión ha sido o bien compilada dentro de PHP o grabada dinámicamente en tiempo de ejecución.

Tabla 1. XML constants

Constant	Value	Description
`XML_ELEMENT_NODE` (integer)	1	Node is an element
`XML_ATTRIBUTE_NODE` (integer)	2	Node is an attribute
`XML_TEXT_NODE` (integer)	3	Node is a piece of text
`XML_CDATA_SECTION_NODE` (integer)	4
`XML_ENTITY_REF_NODE` (integer)	5
`XML_ENTITY_NODE` (integer)	6	Node is an entity like
`XML_PI_NODE` (integer)	7	Node is a processing instruction
`XML_COMMENT_NODE` (integer)	8	Node is a comment
`XML_DOCUMENT_NODE` (integer)	9	Node is a document
`XML_DOCUMENT_TYPE_NODE` (integer)	10
`XML_DOCUMENT_FRAG_NODE` (integer)	11
`XML_NOTATION_NODE` (integer)	12
`XML_HTML_DOCUMENT_NODE` (integer)	13
`XML_DTD_NODE` (integer)	14
`XML_ELEMENT_DECL_NODE` (integer)	15
`XML_ATTRIBUTE_DECL_NODE` (integer)	16
`XML_ENTITY_DECL_NODE` (integer)	17
`XML_NAMESPACE_DECL_NODE` (integer)	18
`XML_ATTRIBUTE_CDATA` (integer)	1
`XML_ATTRIBUTE_ID` (integer)	2
`XML_ATTRIBUTE_IDREF` (integer)	3
`XML_ATTRIBUTE_IDREFS` (integer)	4
`XML_ATTRIBUTE_ENTITY` (integer)	5
`XML_ATTRIBUTE_NMTOKEN` (integer)	7
`XML_ATTRIBUTE_NMTOKENS` (integer)	8
`XML_ATTRIBUTE_ENUMERATION` (integer)	9
`XML_ATTRIBUTE_NOTATION` (integer)	10

Tabla 2. DOMException constants

Constant	Value	Description
`DOM_INDEX_SIZE_ERR` (integer)	1
`DOMSTRING_SIZE_ERR` (integer)	2
`DOM_HIERARCHY_REQUEST_ERR` (integer)	3
`DOM_WRONG_DOCUMENT_ERR` (integer)	4
`DOM_INVALID_CHARACTER_ERR` (integer)	5
`DOM_NO_DATA_ALLOWED_ERR` (integer)	6
`DOM_NO_MODIFICATION_ALLOWED_ERR` (integer)	7
`DOM_NOT_FOUND_ERR` (integer)	8
`DOM_NOT_SUPPORTED_ERR` (integer)	9
`DOM_INUSE_ATTRIBUTE_ERR` (integer)	10
`DOM_INVALID_STATE_ERR` (integer)	11
`DOM_SYNTAX_ERR` (integer)	12
`DOM_INVALID_MODIFICATION_ERR` (integer)	13
`DOM_NAMESPACE_ERR` (integer)	14
`DOM_INVALID_ACCESS_ERR` (integer)	15
`DOM_VALIDATION_ERR` (integer)	16

Classes

The API of the module follows the DOM Level 2 standard as closely as possible. Consequently, the API is fully object-oriented. It is a good idea to have the DOM standard available when using this module.

This module defines a number of classes, which are listed - including their method - in the following tables. Classes with an equivalent in the DOM standard are named DOMxxx.

Tabla 3. List of classes

Class name	Parent classes
DOMAttr	DOMNode
DOMCDataSection	DOMText : DOMNode
DOMCharacterData	DOMNode
DOMComment	DOMCharacterData : DomNode
DOMDocument	DOMNode
DOMDocumentFragment	DOMNode
DOMDocumentType	DOMNode
DOMElement	DOMNode
DOMEntity	DOMNode
DOMEntityReference	DOMNode
DOMNode
DOMNotation	DOMNode
DOMProcessingInstruction	DOMNode
DOMText	DOMCDataSection : DomNode
DOMException
DOMImplementation
DOMNamedNodeMap
DOMNodeList
DOMXPath

Tabla de contenidos
DOMAttr->isId -- Checks if attribute is a defined ID
DOMCharacterData->appendData -- Append the string to the end of the character data of the node.
DOMCharacterData->deleteData -- Remove a range of characters from the node.
DOMCharacterData->insertData -- Insert a string at the specified 16-bit unit offset.
DOMCharacterData->replaceData -- Replace a substring within the DOMCharacterData node.
DOMCharacterData->substringData -- Extracts a range of data from the node.
DOMDocument->createAttribute -- Create new attribute
DOMDocument->createAttributeNS -- Create new attribute node with an associated namespace
DOMDocument->createCDATASection -- Create new cdata node
DOMDocument->createComment -- Create new comment node
DOMDocument->createDocumentFragment -- Create new document fragment
DOMDocument->createElement -- Create new element node
DOMDocument->createElementNS -- Create new element node with an associated namespace
DOMDocument->createEntityReference -- Create new entity reference node
DOMDocument->createProcessingInstruction -- Creates new PI node
DOMDocument->createTextNode -- Create new text node
DOMDocument->getElementById -- Searches for an element with a certain id.
DOMDocument->getElementsByTagName -- Searches for all elements with given tag name.
DOMDocument->getElementsByTagNameNS -- Searches for all elements with given tag name in specified namespace.
DOMDocument->importNode -- Import node into current document.
DOMDocument->load -- Load XML from a file.
DOMDocument->loadHTML -- Load HTML from a string.
DOMDocument->loadHTMLFile -- Load HTML from a file.
DOMDocument->loadXML -- Load XML from a string.
DOMDocument->normalize -- Normalizes document.
DOMDocument->relaxNGValidate -- Performs relaxNG validation on the document.
DOMDocument->relaxNGValidateSource -- Performs relaxNG validation on the document.
DOMDocument->save -- Dumps the internal XML tree back into a file
DOMDocument->saveHTML -- Dumps the internal document into a string using HTML formatting
DOMDocument->saveHTMLFile -- Dumps the internal document back into a file using HTML formatting
DOMDocument->saveXML -- Dumps the internal XML tree back into a string
DOMDocument->schemaValidate -- Validates a document based on a schema.
DOMDocument->schemaValidateSource -- Validates a document based on a schema.
DOMDocument->validate -- Validates the document based on its DTD.
DOMDocument->xinclude -- Substitutes XIncludes in a DOMDocument Object.
DOMElement->getAttribute -- Returns value of attribute
DOMElement->getAttributeNode -- Returns attribute node
DOMElement->getAttributeNodeNS -- Returns attribute node
DOMElement->getAttributeNS -- Returns value of attribute
DOMElement->getElementsByTagName -- Gets elements by tagname
DOMElement->getElementsByTagNameNS -- Get elements by namespaceURI and localName
DOMElement->hasAttribute -- Checks to see if attribute exists
DOMElement->hasAttributeNS -- Checks to see if attribute exists
DOMElement->removeAttribute -- Removes attribute
DOMElement->removeAttributeNode -- Removes attribute
DOMElement->removeAttributeNS -- Removes attribute
DOMElement->setAttribute -- Adds new attribute
DOMElement->setAttributeNode -- Adds new attribute node to element
DOMElement->setAttributeNodeNS -- Adds new attribute node to element
DOMElement->setAttributeNS -- Adds new attribute
DOMImplementation->createDocument -- Creates a DOM Document 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 and version.
DOMNamedNodeMap->getNamedItem -- Retrieves a node specified by name.
DOMNamedNodeMap->getNamedItemNS -- Retrieves a node specified by local name and namespace URI.
DOMNamedNodeMap->item -- Retrieves a node specified by index.
DOMNode->appendChild -- Adds new child at the end of the children
DOMNode->cloneNode -- Clones a node
DOMNode->hasAttributes -- Checks if node has attributes
DOMNode->hasChildNodes -- Checks if node has children
DOMNode->insertBefore -- Adds new child at the end of the children
DOMNode->isSameNode -- Indicates if two nodes are the same node.
DOMNode->isSupported -- Checks if feature is supported for specified version.
DOMNode->lookupNamespaceURI -- Returns namespace URI of the node based on the prefix.
DOMNode->lookupPrefix -- Returns name space prefix of the node based on namespaceURI.
DOMNode->normalize -- Normalizes the node.
DOMNode->removeChild -- Removes child from list of children
DOMNode->replaceChild -- Replaces a child
DOMNodelist->item -- Retrieves a node specified by index.
DOMText->isWhitespaceInElementContent -- Indicates whether this text node contains whitespace.
DOMText->splitText -- Breaks this node into two nodes at the specified offset.
DOMXPath->query -- Evaluates the XPath expression in the given string
DOMXPath->registerNamespace -- Registers the namespace with the DOMXpath object.

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