What are DOM and XML doms?
The XML Document Object Model (DOM) class is an in-memory representation of an XML document. The DOM allows you to programmatically read, manipulate, and modify an XML document. The XmlReader class also reads XML; however, it provides non-cached, forward-only, read-only access.
What is a Xmlnode?
According to the XML DOM, everything in an XML document is a node: The entire document is a document node. Every XML element is an element node. The text in the XML elements are text nodes. Every attribute is an attribute node.
What is the difference between XmlNode and XmlElement?
XmlElement is just one kind of XmlNode. Others are XmlAttribute, XmlText etc. An Element is part of the formal definition of a well-formed XML document, whereas a node is defined as part of the Document Object Model for processing XML documents.
What is CDATA and Pcdata in XML?
CDATA means the element contains character data that is not supposed to be parsed by a parser. #PCDATA means that the element contains data that IS going to be parsed by a parser. The keyword ANY declares an element with any content. If a #PCDATA section contains elements, these elements must also be declared.
What are the types of XML parsers?
In PHP there are two major types of XML parsers:
- Tree-Based Parsers.
- Event-Based Parsers.
What is CDATA used for?
A CDATA section is used to mark a section of an XML document, so that the XML parser interprets it only as character data, and not as markup. It comes handy when one XML data need to be embedded within another XML document. There are two methods to ensure that an XML file is well-formed.
What is leaf node in XML?
The leaf nodes of the tree consist of text, e.g., Shakespeare, Macbeth, and Macbeth’s castle. The tree’s internal nodes encode either the structure of the document (title, act, and scene) or metadata functions (author). The standard for accessing and processing XML documents is the XML Document Object Model or DOM .
Why is DOM used?
The Document Object Model (DOM) is a programming interface for web documents. It represents the page so that programs can change the document structure, style, and content. The DOM represents the document as nodes and objects; that way, programming languages can interact with the page.