Iterators over collections provide a clean separation of concerns. Filter Iterators are a great way to abstract the logic of your selecting sub-sets of Collections elements. by Mauro Chojrin

I’ll admit, one of the best things I love about PHP is that I don’t have to deal with all sorts of different ways to deal with data. At the base of the language we have nice primitives like strings, integers, floats, and Booleans, and we also have one of the most flexible structures known to programmers—the PHP Array. The array itself wears many hats. If you are coming from other languages, you have to think about the structure of ordered data in a few different ways. The reason for this tends to deal mostly with how we need to represent data and how we manipulate data. Different data has different requirements.

Last weekend, I gave a talk on SPL Iterators and Interfaces at MadisonPHP. Beth Tucker Long, our previous Editor in Chief, is one of the main organizers and showed how much she’s contributed to php[tek] (and the planning for php[world]) by putting on a truly excellent regional conference. It was great to see some of the other speakers I’d […]