Weekly roundup: vacation time

I'm leaving again in Tuscany next week, but this time for vacation on the Tirrenian Sea. You'll continue to see my articles published on Web Builder Zone anyway.

Here are my original articles for this week.
The different kinds of testing. You know, all those buzzwords such as functional, unit, acceptance, integration testing have a precise meaning.
Practical PHP Patterns: Client Session State, an explanation on how to persist information on the client via cookies, forms or URLs.
Practical PHP Patterns: Server Session State, which you can contrast with the earlier post on Client Session State.
How to build a Kanban board, a practical tutorial with photographies.

Image credits.