Bi-weekly roundup: DDD in PHP

I'm wrapping up my presentation for the DDD Day in Bologna and beginning rehearsals. Since I am involved in the project as a software architect, I will talk mostly about the technical side (it's DDD in PHP, not DDD in transportation and rental companies.) Wit respect to Java and C#, we will take a look at the differences in the language, in the platform where they are run and in the Domain Model.
See you in Bologna on October 8th.

Here are my original articles published in the last two weeks.
First week
Practical PHP Refactoring: Replace Record with Data Class is about substituting data structures provided by the language or libraries with an object coded on your own.
Practical Google+ Api is a guide to get you up and running in coding for an application using Google+ as a data source.
Practical PHP Refactoring: Replace Type Code with Class is about substituting a field value with a new object.
Phar: PHP libraries included with a single file is self-explanatory: Phar is the equivalent of Jar for the PHP world.
Second week
Practical PHP Refactoring: Replace Type Code with Subclasses expands on the type code miniseries, by adding subclasses to the one containing the problematic field.
Cross-Site Request Forgery explained is my take on this security issue, providing three ways documented in the literature to avoid it.
Practical PHP Refactoring: Replace Type Code with State or Strategy is the third option for eliminating a type code: transforming its values in a hierarchy of State objects.
Pretotyping: a complete example describes my experience with Who Disagrees With Me? and all the data I collected, which suggests a very focused audience but a descending trend.