No protocol error while validating xml
The most recognizable feature of XML is its tags, or elements (to be more accurate).In fact, the elements you’ll create in XML will be very similar to the elements you’ve already been creating in your HTML documents.And all the code used in the book is available to customers in a downloadalbe archive.To find out more about “No Nonsense XML Web Development with PHP”, visit the book’s information page, or review the contents of the entire publication. If ever there were a candidate for “Most Hyped Technology” during the late 90s and the current decade, it’s XML (though Java would be a close contender for the title).The first thing we want to do is to create an XML document.For our purposes, any XML document will do, but for the sake of continuity, let’s use the product listing document we saw earlier in the chapter.Semantics and Other Jargon You’re going to be hearing a lot of talk about “semantics” and other linguistics terms in this chapter. For example, if I asked you to list as many names for “female animals” as you could, you’d probably start with “lioness”, “tigress”, “ewe”, “doe” and so on.If you were presented with a list of these names and asked to provide a category that contained them all, it’s likely you’d say something like “female animals.” Furthermore, if I asked you what a lioness was, you’d say, “female lion.” If I further asked you to list associated words, you might say “pride,” “hunt,” “savannah,” “Africa,” and the like.
That’s why we need to give computers as much help as we can.
The title contains over 350 pages of XML and PHP goodies.
It walks you through the process of building a fully-functional XML-based content management system with PHP.
HTML rarely (if ever) provides information about how the document is structured or what it means.
In layman’s terms, HTML is a presentation language, whereas XML is a data-description language.