PageChain.net has posted a list of some "great places to go to" to learn PHP right now - some resources out on the web that can help you get started, provide examples and give you community to support you in your development.
Here are some resources to help you not only learn PHP, but also reference PHP information should you ever need it. This list isn't exhaustive, however, it should provide you with a lot of help when you need your PHP fix.
Some of the sites included in their list include: