On the php|architect blog today Giorgio Sironi takes a look at the state of PHP 5.3 support both on the developer and on the server side and how well it's being adopted.
PHP 5.3 introduced namespaces and anonymous functions to the PHP world, which are surely great innovations for this programming language. For PHP 5.3 to be widely used, however, it needs to be supported by the various operating systems installed on development boxes and servers.
He talks about the three major platforms when it comes to web development and serving - Linux, Windows and OS X - and how easy it is to get this latest version of PHP up and running on each. He also briefly touches on the differences in adoption from the two halves of the development process - desktop versus server.