Hiveminds Magazine reminds us with a quick post today that the demand for PHP developers only seems to be going up for the upcoming year (2007):

All of the php developer employment statistics point to a prosperous year for those that have PHP in their arsenal of programming knowledge. [...] Now with a conjecture that is showing high promise is on the horizon, PHP developers are sitting in good standing on the job market.

There's a bit of a graph showing the decline of the Java developer and the slight advantage PHP is gaining over ASP.Net currently. Their assumption is that, with a period of steadiness that PHP is seeing right now, there will be an upturn in the PHP trend (as is usually the case).