Three Devs & A Maybe podcast has released their latest episode today: Episode #35 - an interview with Simon Holywell. Simon is the author of an upcoming book about functional programming in PHP.

This week we are lucky to have Simon Holywell on the show to talk all things Functional Programming. Initially starting off with a concrete definition of Functional Programming, we move on to a brief history of the paradigm and immutability. Following this we explain recursion (and tail-recursion), along with closures and higher-order functions. From this base we are able to then talk about the different languages available to you which cater towards the functional mindset (i.e. Haskell). We then set our sights on the PHP language and what/wish it had to offer when exploring the functional paradigm. Finally, we mention his upcoming book, along with experiences presenting at user-group meet-ups.

Topics mentioned in this episode include:

• slides from Simon's presentation
• Scala
• PHP internals, pthreads and PHPDBG
• Haskell

You can listen to this latest episode either through the in-page player or by downloading the mp3 directly.