How to install and configure Composer on hosting step by step?

Question

Composer

I make the command:

composer init

Next, the installer asks to configure the configuration:

Package name (<vendor>/<name>) [.../public_html]:

What should I enter in this case? I tried to leave all the steps by default, then the installer offered to install the dependencies. I needed a phpWord package, I entered:

Define your dependencies.
Would you like to define your dependencies (require) interactively [yes]?
Search for a package: phpWord

He asked for the version, I indicated the latest one, at the last step the stopper:

Composer could not find a composer.json file in <МОЙ-ПУТЬ>/public_html
To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ "Getting Started" section

Tell me how to do it right or maybe there is a step-by-step instruction for beginners.

Answer 1

If you enter the command composer initand see a response, then composer is already installed and available for use.
It remains to study the documentation on the use of https://getcomposer.org/doc/01-basic-usage.md