Composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.
Please refer to the official Composer documentation for usage details.
From the host via
fin composer --version
From with the cli container (
fin bash) composer can be called directly:
Composer must be run inside the same directory as composer.json
Unless the the
--working-dir= is used, the composer command must be run within the directory or child directory containing the
project's composer.json file.