Composer

To update composer on production, always follow the following commands

Download the composer version you required, in following command it is going to download 2.4.1 version.

wget https://getcomposer.org/download/2.4.1/composer.phar

Make the download file executable using following command.

chmod +x composer.phar

Move the file to the right place

mv composer.phar /usr/local/bin/composer

Step to push code and install packages

First, a more general note: you shouldn't be requiring individual packages on the server. That's a recipe for breaking things. You should only ever do "composer require" or "composer update" in a development environment. Composer will then figure out the right set of package versions, and record them in composer.lock. On the production server, you should only ever be running "composer install", which simply installs the packages/versions specified in composer.lock.

The typical "release code to production" process should really only ever be:

git pull
composer install
run any data base migrations.

Following are best steps to push code on live

Upgrade composer to the current version on your dev machine and on the server.
Get all the dependencies sorted out and working on your local machine.
Commit composer.json and composer.lock
Check out the code on the server.
Do "composer install" on the server.