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Learning PHP 7

Learning PHP 7

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

Learning PHP 7

3.4 (10)
By: 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

Using PDO


So far, we have worked with MySQL, and you already have a good idea of what you can do with it. However, connecting to the client and performing queries manually is not our goal. What we want to achieve is that our application can take advantage of the database in an automatic way. In order to do this, we will use a set of classes that comes with PHP and allows you to connect to the database and perform queries from the code.

PHP Data Objects (PDO) is the class that connects to the database and allows you to interact with it. This is the popular way to work with databases for PHP developers, even though there are other ways that we will not discuss here. PDO allows you to work with different database systems, so you are not tied to MySQL only. In the following sections, we will consider how to connect to a database, insert data, and retrieve it using this class.

Connecting to the database

In order to connect to the database, it is good practice to keep the credentials—that is, the...

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Learning PHP 7
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