Book Image

Mastering PHP 7

By : Branko Ajzele
Book Image

Mastering PHP 7

By: Branko Ajzele

Overview of this book

PHP is a server-side scripting language that is widely used for web development. With this book, you will get a deep understanding of the advanced programming concepts in PHP and how to apply it practically The book starts by unveiling the new features of PHP 7 and walks you through several important standards set by PHP Framework Interop Group (PHP-FIG). You’ll see, in detail, the working of all magic methods, and the importance of effective PHP OOP concepts, which will enable you to write effective PHP code. You will find out how to implement design patterns and resolve dependencies to make your code base more elegant and readable. You will also build web services alongside microservices architecture, interact with databases, and work around third-party packages to enrich applications. This book delves into the details of PHP performance optimization. You will learn about serverless architecture and the reactive programming paradigm that found its way in the PHP ecosystem. The book also explores the best ways of testing your code, debugging, tracing, profiling, and deploying your PHP application. By the end of the book, you will be able to create readable, reliable, and robust applications in PHP to meet modern day requirements in the software industry.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
16
Debugging, Tracing, and Profiling

PSR-6 - caching interface


Performance issues are the ever-hot topic of application development. The effects of poorly performing applications can sometimes have serious financial impact. Back in 2007, Amazon reported a 100 ms increase in https://www.amazon.com/ load time and their sales decreased by 1%. Several studies have also shown that nearly half of the users are likely to abandon the website if the page load time is over 3 seconds. To address the performance issues, we look into caching solutions.

Both browsers and servers allow caching of various resources, such as images, web pages, CSS/JS files. Sometimes, however, this is not enough as we need to be able to control the caching of various other bits on the application level, such as objects themselves. Over time, various libraries rolled out their own caching solutions. This made it tough for developers, as they needed to implement specific caching solutions in their code. This made it impossible to easily change caching implementation...