The advanced book probably is a little too advanced for you at the moment. It can get rather confusing at times, and even I have to read the chapters 3 to 4 times to fully understand them.

I honestly don't have any more PHP books other than that one, try Rendair's suggestion - it looks to have some fairly decent reviews.

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The man who comes back through the Door in the Wall will never be quite the same as the man who went out.