Composer - The Ultimate Guide for PHP Dependency Management

In this series, you will learn about how to manage PHP project dependencies using Composer. In modern PHP development, composer has become an indispensable tool that has aided the rapid development of the PHP Language.

Composer is a dependency manager for PHP (a tool used for installing, updating and managing libraries that your project depends on).

It is used in almost all modern PHP frameworks such as Symfony, Cakephp and Laravel, and Composer is one of the most highly recommended tools that solves fundamental issues in many web projects.

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Some problems that Composer solves include:

• Resolving dependencies for PHP packages

• Autoloading solution for PHP packages

• Keeping all packages updated

Most PHP packages are built on top of other well-known PHP packages, a common example is symfony components, which form the bedrock for many PHP frameworks such as Laravel. By using Composer, developers can reuse stable PHP libraries, and Composer will automatically handle dependency resolution. When you install a package, it will automatically install all the required dependencies for you.