Summary

Throughout this chapter, we have addressed some aspects of the PHP performance optimization. While these merely scratch the surface of the overall performance topic, they outline the most common areas every PHP developer should be deeply familiar with. The broad range of configuration directives allows us to tune application behavior that often works in tandem with the web server itself. The backbone of optimal performance, however, lies in the thoughtful use of resources across the stack, as we got to observe through the simple SQL query example.

Moving forward, we will look into serverless architecture, an emerging abstraction of the standard development environment.