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The last decade has been witness to the second iteration of web design and development. Web sites have transformed into web applications and rarely are new projects commissioned that do not involve some element of interactivity. The increasing complexity of the software being developed for the internet fuelled a requirement for structured and considered application design. Today the most common de

Learning PHP 5.3 by writing your own ORM Creating an ORM for PHP is not an everyday task but writing one is a good way to improve your PHP skills, especially if you use some of the additional features PHP 5.3 adds to the language. There are many excellent ORMs (Object Relational Mappings) already in existence and for a real-world project it would probably better to use one of these, but this tutor

Graphs are ubiquitous. Social or P2P networks, thesauri, route planning systems, recommendation systems, collaborative filtering, even the World Wide Web itself is ultimately a graph! Given their importance, it’s surely worth spending some time in studying some algorithms and models to represent and work with them effectively. In this short article, we’re going to see how we can store a graph in a

In any decent sized project, the more times you commit code, the bigger the chance is that you will break something. Call it the law of unintended consequences or the butterfly effect, but the fact is that in complex systems, we cannot anticipate all the effects of a change. To deal with this we can either adopt the “release and pay” method of software control, or we can setup systems to help us f