what is composer

Simply put, Composer is a new package management tool serving the PHP ecosystem. It actually consists of two parts: Composer and Packagist.

What is composer?

Composer is a dependency management tool for PHP. We can declare the external tool libraries we depend on in the project, and Composer will help you install these dependent library files. With it, we can easily use one command to reference other people's excellent code into our project. .

Composer is not installed globally by default, but is installed based on a directory of a specified project (such as vendor).

Composer requires PHP 5.3.2 or above, and openssl needs to be turned on.

Composer can run on Windows, Linux and OSX platforms.

For more technical articles on using composer, please visit the composer tutorial column to learn!

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