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

Chapter 7. Optimizing for High Performance

Throughout the years, PHP has grown into a remarkable language we use to build our web applications. An impressive number of language features, alongside countless libraries and frameworks, make our job ever so easier. We often write code which encompasses several layers of stack without giving it a second thought. This makes it easy to overlook one of the most important aspects of every application--performance.

While there are several aspects to performance that developers need to pay attention to, the end user is only interested in one - the time it takes for their web page to be loaded. This is really all that it comes down to. Nowadays, users expect their pages to load in less than 2 seconds. Anything more and we face decreased conversion, which often translates into serious financial loss when it comes to big e-commerce retailers:

"A 1 second delay in page response can result in a 7% reduction in conversions." "If an e-commerce site is making...