The term XML is an acronym that stands for eXtensible Markup Language. XML is a markup language following the current DOM (Document Object Model) put forth by the W3C (World Wide Web Consortium). Similar to HTML (HyperText Markup Language), it uses angle-bracket tags to define data structures, which can be nested. The major difference between XML and HTML is that XML has no predefined tags, meaning that it defines tags as they are used. Because of this, XML is most widely used for data storage, transmission, and formatting in web applications, often in conjunction with a server-side scripting language such as PHP, or in a design methodology called AJAX (Asynchronous Javascript and XML) wherein Javascript code on the client side can request data from the server in the form of an XMLHTTPRequest, so that it can pull new data from the server to update the page, without having to download and re-render the entire document every time a change is made.
XML does not have the concept of client-side/server-side.
XML training courses are used to teach people how to apply XML in software. It's an enhanced version of HTML that has seen heavy usage recently, especially in cell phones.
You can compare this with English usage. I can say to you, "Jeet yet?" and you would probably understand me to mean, "Did you eat yet?" One of these sentences is valid English, the other is questionable. In the same way you can write valid XML and you can write XML with numerous imperfections. Many XML language processors are capable of understanding both. However, it's safer to write valid XML.
That depends on what you want to do, xml tools include; xml parsers xml validators xml editors xml schema editors xml code generators
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there is no source code, xml is not a programming language, its a markup language for which you create your own tags, the basic xml syntax is <xml> to start an xml file, and </xml> to end the xml file.
it is the same way to create xml file by converting into txt you have to use the correct xml syntax ie <xml> this is to denote strat of xml file and this </xml> denotes end of xml file. You have to use the right xml code or your xml file wont be valid or well formed.
If you open the xml in most web browser it will state an error code denoting the type of malformation of the xml. you can use an xml tool like an xml editor to validate and correct your xml.
If you use an xml tool like liquid xml studio or any other xml tool you will be able to convert your xml into an xsd or dtd.
XML Schema is an XML-based alternative to DTD.An XML schema describes the structure of an XML document.The XML Schema language is also referred to as XML Schema Definition (XSD).An XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic syntactical constraints imposed by XML itself.
XML is a language used to store data. XSLT is a language which is used to transform XML into other XML.
Well-formed XML means that the XML is correct (it has only one root node, and all elements match an end element tag)Valid XML means that the XML can be validated to an XML Schema or DTD, and that all the tags in the XML are also in the Schema or DTD, and in the right place.