Advanced PHP for Web Professionals

Parsing and Transforming XML Documents

The example above works well for parsing ultrasimple documents, but it doesn't take into account nested elements or attributes.

In the real world, XML documents are highly structured and precisely defined. A great deal of effort goes into designing XML information products. One reason for the amount of effort that is required is the extensible nature of XML. XML gives you a set of rules that allows you to create these complex structured documents. Those rules, however, provide for an almost infinite amount of possibilities for defining a document's structure. Keep that in mind when creating a PHP XML parsing application. Each application that you create will only work with one particular document structure. ...