Install Composer on CentOS

Composer is a tool for dependency management in PHP. It allows you to declare the dependent libraries your project needs and it will install them in your project for you.

First you have to go to the /tmp directory

cd /tmp

Download the composer.phar file

curl -sS https://getcomposer.org/installer | php

Move it to /usr/local/bin/

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

Now you can to use the command composer globally.