php|architect has officially announced their php|tek conference for 2012 and have opened their Call for Papers:

The simple answer is to the question "What topics are you looking for" is: anything that helps inspire PHP developers to do their jobs better, more easily, and more efficiently. [...] Most importantly, we do not necessarily look for talks that are about PHP. Some of the most successful presentations over the years have been on products built on PHP (like frameworks) and on technologies that are tangential to it (e.g.: Apache, JavaScript, databases, and so on).

The deadline to submit is December 31st for the two types of sessions - tutorials (3 or 6 hours long) and regular talks (50 minutes). You can manage your proposals via the php|architect website.