Book Image

Learning PHP 7

By : Antonio L Zapata (GBP)
Book Image

Learning PHP 7

By: Antonio L Zapata (GBP)

Overview of this book

PHP is a great language for building web applications. It is essentially a server-side scripting language that is also used for general purpose programming. PHP 7 is the latest version with a host of new features, and it provides major backwards-compatibility breaks. This book begins with the fundamentals of PHP programming by covering the basic concepts such as variables, functions, class, and objects. You will set up PHP server on your machine and learn to read and write procedural PHP code. After getting an understanding of OOP as a paradigm, you will execute MySQL queries on your database. Moving on, you will find out how to use MVC to create applications from scratch and add tests. Then, you will build REST APIs and perform behavioral tests on your applications. By the end of the book, you will have the skills required to read and write files, debug, test, and work with MySQL.
Table of Contents (17 chapters)
Learning PHP 7
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

The necessity for tests


When you work on a project, chances are that you are not the only developer who will work with this code. Even in the case where you are the only one who will ever change it, if you do this a few weeks after creating it, you will probably not remember all the places that this piece of code is affected. Okay, let's assume that you are the only developer and your memory is beyond limits; would you be able to verify that a change on a frequently used object, such as a request, will always work as expected? More importantly, would you like to do it every single time you make a tiny change?

Types of tests

While writing your application, making changes to the existing code, or adding new features, it is very important to get good feedback. How do you know that the feedback you get is good enough? It should accomplish the AEIOU principles:

  • Automatic: Getting the feedback should be as painless as possible. Getting it by running just one command is always preferable to having...