I was browsing "PHP news" on Google and came across this blog - Dragon Be's PHP blog - which exhorted its readers to do something for the community: "update documentation, fix bugs on your favourite project or attend a PHP user group or conference."
Not the usual sort of thing you might be asked to do for the community (I can't see this being on the list of community service projects), but for the PHP community it is a fair request.
Most of the websites I write and maintain are now written in PHP, making the websites dynamic and in most cases giving the website client the opportunity to make their own updates to the website as and when required.
But I will make it an objective in 2014 to update documentation and fix bugs. I also have a project of my own running on my own laptop (a sports simulation which may lead to others...), but it has its own bugs. I know my way around them, but I need to make it bug-free to make it marketable. A 2014 challenge.
As for attending a PHP user group or conference - that's a good idea. Let's Google that...