Where and how to publish a book about Php and not only?

Question

Books

Actually, the question itself is the same and a little out of the general pool: "Where and how to publish a book about Php and not only?"
But still, you need to get an answer, since there is no such experience at all.

Answer 1

You go to the publisher, the same AST, say: "I want to publish a book, here are the money." They will ask you who you are to write a book about PHP and not only, you will answer, give money and in a few months your book will be released.
You can go to a simpler publisher, pay a little more money and your book will be released without asking if you can even write something about PHP and not only.
That's all.

Answer 2

We must go to the publisher of the Transformer)
UPD. Today I came across an ad from this publisher . I xs coincidence or because of my answer in this thread, they realized that I was "interested" in publishing.
It seems to be even a site of norms. Go there and see if it helps :)