Continuous Integration

You have learned the theory about writing clean PHP: Hypertext Preprocessor (PHP) code, and you now know the necessary tools and metrics that help us to achieve and keep to high quality levels. However, what is still missing is the integration of all these technologies into a workflow that facilitates your daily work.

In the following pages, we will elaborate on continuous integration (CI) and learn by example how to set up a simple but effective automated workflow.

Furthermore, we will show you how to set up a selection of code quality tools locally in a way that they support you the most, without having to manually run them. Additionally, we will tell you some best practices about how to add these workflows to an existing project.

The main topics we will cover are listed here:

• Why you need CI
• The build pipeline
• Building a pipeline with GitHub Actions
• Your local pipeline—Git hooks
• Excursion—Adding CI to existing...