On the SitePoint PHP blog Thomas Punt has returned with more pthreads knowledge and shows you a few things to watch out for when upgrading from pthreads v2 to v3. pthreads is a PHP extension that allows for better process handling directly from PHP than just the built in proc_* functions.

A fair amount has changed for the pthreads extension with the release of pthreads v3. This article aims to cover the necessary information for those who are looking to upgrade their applications from pthreads v2 to v3.

If you’re unfamiliar with pthreads, check out my introduction to pthreads instead!

He starts with some of the more generic changes in this latest version with the most major being that it can now only be used in the command-line environment. Other changes were made to workers, method modifiers and the removal of some classes and methods. He also mentions some of the methods that were changed and some new classes/methods that were added. Overall he's of the opinion that, while some of the changes could make for headaches in the transition, v3 of the extension has "received a nice cleanup and is looking ever better."