Composer is an application-level package manager for the PHP programming language that provides a standard format for managing dependencies of PHP software and required libraries.

In this article, we’re going to install composer on CentOS 7/8. Let’s start:

Table of Contents

1. Installation
2. Version Check
3. Update Composer

Installation

At first, ensure that we’ve installed PHP by this command:

php --version

If PHP is not available on your machine, then please install PHP first. Then we need to install dependencies:

sudo dnf install wget -y # CentOS 8
sudo yum install wget -y # CentOS 7

Download the Composer installer script:

sudo wget https://getcomposer.org/installer -O composer-installer.php

Run the following command to install Composer in the /usr/bin directory:

sudo php composer-installer.php --filename=composer --install-dir=/usr/bin

You’ll set the output like:

All settings correct for using Composer
Downloading...

Composer (version  1.10.13) successfully installed to: /usr/bin/composer
Use it: php /usr/bin/composer

Verify the installation by typing:

composer

Version Check

Run this command to see the current version of composer:

composer -V
#Or
composer --version

Update Composer

We can easily update composer to latest version. Just run this command:

composer self-update