New on the Ibuildings techPortal site the latest episode of their DPCRadio podcast series has been posted (as recorded at the Dutch PHP Conference 2010). This episode is Johannes Schluter's talk "Under PHP's Hood".

PHP developers usually don’t have to care about the inner workings of PHP and the Zend Engine as it simply works. This presentation will present some of the inner workings, like teaching the truth about references. Additionally it will present basics of PHP’s opcode, the internal representation of a script, and it’s consequences for opcode caching, autoloading and other related issues.

As always, you can either listen via the in-page player or you can download it and listen later.