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Parsing FOAF with PHP

Excerpt: Summary:An introduction to parsing FOAF and RDF using the RAP parser for PHP. Introduction This article is a guide to using PHP to parse FOAF documents. FOAF stands for Friend-of-a-Friend and is a fun application of RDF that describes people and their relationships to one another. It assumes that the reader is familiar with XML and PHP but that they have little or no knowledge of RDF or FOAF and how to parse them. Three Minute RDF RDF (Resource Description Framework) is a format devised by the W3C (World Wide Web Consortium) to represent metadata and knowledge on the web. RDF uses a graph model to store information. Each node in the graph is called a Resource and may have a URI as a label. Some nodes represent text and are …

RDF for Modular, Extensible Markup

Excerpt: Summary: XML provides extensibility through a common syntax but leaves the interpretation of the information to the developer. Increasing modularity through the use of XML namespaces further increases developers’ workload as they struggle to interpret ever more complex data models. RDF leverages the syntactic extensibility of XML and the modularity of XML namespaces and additionally provides global extensibility through a common data model …