PHP Composer : Manage Package Dependency in PHP

What’s a PHP composer? How to use PHP composer in your PHP Application? What are the benefits of using composer in your application?

PHP Composer is a dependency manager. It manages the dependency of PHP packages in your application. Using composer you can pull the required library and dependencies and manage them in one place. The concept of a composer is similar to npm in node.js and gem in Ruby.

Let’s first understand what is a dependency.

PHP Traits Explanation with Example

PHP Traits

PHP Traits

PHP 5.4 introduces the concept of traits. In PHP 5.4 version several new features was introduced, one such feature was PHP traits.

PHP traits help us to minimize code duplication in our codebase. Until the concept of traits, PHP uses classical inheritance model in which one class can inherit only one class. But sometimes, it is beneficial to inherit from multiple classes to avoid code duplication. To solve this problem, PHP community introduces the concept of traits.

Using Interface in PHP

What is an interface in PHP? An interface is an important concept in an object oriented programming.

In this tutorial, we’ll discuss following points.

1. What is an interface?

2. How to create an interface in PHP.

3. What’s the importance of using an interface in our PHP application?

Interface in PHP

Interface in PHP

What is an Interface in PHP?

An Interface defines a contract for what a class can do, without saying anything about how the class can do it. Through interfaces, we define what a class can do, the classes that implement interface define how it can do it.

To understand the concept of an interface let’s take an example of a caching system. There are different types of caching available such as File system, Memcache, Redis etc. First, we need to define what a cache can do (I mean different operations), how we do it? we can do it through an interface. A class (Such as Memcache, Redis etc) which implements cache interface will define how they will do it.

NOTE – An interface will not add any additional functionality in your code but it outlines a standard format to which your classes need to use.