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  • Book Overview & Buying Learning PHP 7
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Learning PHP 7

Learning PHP 7

By : Antonio L Zapata (GBP)
3.4 (10)
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Learning PHP 7

Learning PHP 7

3.4 (10)
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 (12 chapters)
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11
Index

Inheritance


We have presented the object-oriented paradigm as the panacea for complex data structures, and even though we have shown that we can define objects with properties and methods, and it looks pretty and fancy, it is not something that we could not solve with arrays. Encapsulation was one feature that made objects more useful than arrays, but their true power lies in inheritance.

Introducing inheritance

Inheritance in OOP is the ability to pass the implementation of the class from parents to children. Yes, classes can have parents, and the technical way of referring to this feature is that a class extends from another class. When extending a class, we get all the properties and methods that are not defined as private, and the child class can use them as if they were its own. The limitation is that a class can only extend from one parent.

To show an example, let's consider our Customer class. It contains the properties firstname, surname, email, and id. A customer is actually a specific...

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Learning PHP 7
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