Which Books are recommended for Learning PHP?

There are many books available for learning PHP. But lots of them can get quickly outdated. Here is a quick list of PHP books you should look into when learning PHP or extending your knowledge. Also keep in mind that writing a very good programming book can take several thousand hours so supporting their authors is nice way of saying thank you.

Free PHP Books

GitHub OctocatFound a typo? Something wrong with this content? Just fork and edit it.

Content of this work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. Code snippets in examples are published under the CC0 1.0 Universal (CC0 1.0). Thanks to all the contributors.