I. Introduction to XMLXML is a markup language that describes data and provides a standardized way to represent text data. The XML document is suffixed with. Xml. It is important to note that XML is case-sensitive.Let's start with a simple XML
Xml
What is XML?
XML refers to Extensible Markup Language (extensible Markup Language)
XML is a markup language, very similar to HTML
XML is designed to transfer data, not to display data
XML tags are not predefined. You need to define the label
1.XML and HTML are designed for different purposes:
XML is designed to transmit and store data , and its focus is on the content of the data . HTML is designed to display data , and its focus is on the appearance of the data. HTML is designed to
XML language what is XML?XML refers to Extensible Markup Language (extensible Markup Language), which is a markup language , much like HTML. It is designed to transmit data rather than display it. XML tags are not predefined and require users to
This article illustrates the XML basic introduction and XML tag elements of the Introduction to PHP operations XML. Share to everyone for your reference. The specific analysis is as follows:
Explained in XML instance:
Copy Code code as
Fourth Chapter XML syntax
Outline:
I. XML syntax rules
Two. The syntax of the element
Three. Syntax for annotations
Four. CDATA syntax
Five. Namespaces's grammar
Six. Entity's grammar
Seven. Syntax for DTDs
With the previous three chapters,
Fourth Chapter XML syntaxOutline:I. XML syntax rulesTwo. The syntax of the elementThree. Syntax for annotationsFour. CDATA syntaxFive. Namespaces's grammarSix. Entity's grammarSeven. Syntax for DTDsWith the previous three chapters, we have learned
The XML parser helps the application parse the XML document and provides the application with the information it needs. The XML parser reads each character in the XML document and determines which characters are the label of the document, which is
Obviously, you will immediately understand that the most common tool for creating XML files is like HTML, that is, & quot; notepad & quot.
Basic rules of Xml elements
An element is the basic unit of an xml document. an xml document is
Development ToolsJUnit unit testCommon applications of XML files:1. Data Exchange2. Configuration File1. xml Overview1.1xml concept: XML is essentially a data storage format. It can store the relationship between data while saving data. XML uses
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