We hope that, after reading this chapter, you are as convinced as we are that CI is extremely helpful and thus a must-have tool in your toolbox. We explained the necessary terms around this topic as well as the different stages of a pipeline, not only in theory but also in practice, by building a simple but working pipeline using GitHub Actions. Finally, we gave you an outlook on CD.
You now have a great foundation of knowledge and tools to write great PHP code. Of course, learning never stops, and there is so much more knowledge out there for you to discover that we could not fit into this book.
If you made developing PHP software your profession, then you usually work in teams of developers. And even if you are maintaining your own open source project, you will interact with others—for example, when they submit changes to your code. CI is an important building block, but not the only thing you need to consider for a successful team setup.
For us, this topic...