Composer is a tool for managing dependencies in PHP, and I would not like to confuse it with a package manager. It creates a composer.json file that contains all the dependencies needed to run your project and then installs them in the vendor folder. I assume you are familiar with this tool, but a refresh is welcome anytime, by accessing this link.

How do I install it on linux?

1. Make sure you have everything you need to install the composer.

 

2. Download the Composer installer.

Composer is now installed on your system.

How do you check?

 

# composer require vendor/package

Easy! This command will add a new mandatory dependency in composer.json, implicitly in your project. And of course you can add a specific version of an addiction in case you have any conflicts.

# composer install

Even if you didn't use the composer require command, this command will install the entire dependency package for a project, and I'm sure you've already done so.

# composer update

Abuse this command! Keep your project up-to-date with all technologies and the latest versions of addictions.
Or you can use it to update a package namely composer update vendor / package.

# composer outdated

You will be surprised how many outdated packages you can project. Try it!

# composer remove

If you choose to delete a specific dependency, you can use:

# composer dump-autoload

You have created a service, a provider, or simply added a few classes to the project, just do your magic. With this command, you tell the composer where to find them.