On the PHP in Action blog, a new series has been kicked off with this first part looking at "real programming" in the upcoming PHP 5.3 release.

You may have heard of the new features that are scheduled for PHP 5.3, but who knows what they can be used for in real programming? I took the time for some experimental research, and came up with a few examples.

This first part focuses on the new lambda/closures functionality that will come with the new release. He compares it to the create_function syntax currently offered, specifically when it comes to sorting and manipulating arrays.