Composer is a php application package manager created to provide a standard format for managing dependencies of PHP Software and required libraries. It is very helpful when you want to manage and integrate external packages into your PHP projects.
Install Composer on CentOS 8
After basic intro, we are going to start the actual installation of Composer on CentOS Operating System. Just follow the below steps to make installation easy.
Step 1: Installing PHP
Run the below command to install php in your local system if it is already not installed.
sudo dnf install @php
Confirm installation by typing command
[email protected] ~]$ php -version
PHP 7.2.11 (cli) (built: Oct 9 2018 15:09:36) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
If you don’t know how to install PHP follow the below link
Step 2: Downloading Composer Installer
You can easily download the php composer installer package by running
sudo dnf -y install wget
wget https://getcomposer.org/installer -O composer-installer.php
Step 3: Installing PHP Composer on CentOS 8
After downloading the installer, install the composer on your Linux machine by running below command
sudo php composer-installer.php --filename=composer --install-dir=/usr/local/bin
You’ll see the output similar to the below:
All settings correct for using Composer
Composer (version 1.9.1) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer
You can verify your installation by checking version of composer
Run the composer command to check the usage page
Composer version 1.9.1 2019-12-21 17:19:34
command [options] [arguments]
-h, --help Display this help message
-q, --quiet Do not output any message
-V, --version Display this application version
--ansi Force ANSI output
--no-ansi Disable ANSI output
-n, --no-interaction Do not ask any interactive question
--profile Display timing and memory usage information
--no-plugins Whether to disable plugins.
-d, --working-dir=WORKING-DIR If specified, use the given directory as working directory.
--no-cache Prevent use of the cache
-v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
about Shows the short information about Composer.
archive Creates an archive of this composer package.
browse Opens the package's repository URL or homepage in your browser.
check-platform-reqs Check that platform requirements are satisfied.
clear-cache Clears composer's internal package cache.
clearcache Clears composer's internal package cache.
config Sets config options.
create-project Creates new project from a package into given directory.
depends Shows which packages cause the given package to be installed.
diagnose Diagnoses the system to identify common errors.
dump-autoload Dumps the autoloader.
dumpautoload Dumps the autoloader.
exec Executes a vendored binary/script.
global Allows running commands in the global composer dir ($COMPOSER_HOME).
help Displays help for a command
home Opens the package's repository URL or homepage in your browser.
i Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.
info Shows information about packages.
init Creates a basic composer.json file in current directory.
install Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.
licenses Shows information about licenses of dependencies.
list Lists commands
outdated Shows a list of installed packages that have updates available, including their latest version.
prohibits Shows which packages prevent the given package from being installed.
remove Removes a package from the require or require-dev.
require Adds required packages to your composer.json and installs them.
run Runs the scripts defined in composer.json.
run-script Runs the scripts defined in composer.json.
search Searches for packages.
self-update Updates composer.phar to the latest version.
selfupdate Updates composer.phar to the latest version.
show Shows information about packages.
status Shows a list of locally modified packages, for packages installed from source.
suggests Shows package suggestions.
u Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
update Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
upgrade Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
validate Validates a composer.json and composer.lock.
why Shows which packages cause the given package to be installed.
why-not Shows which packages prevent the given package from being installed.
You have finished Installing Composer on CentOS 8