How to Install PHP Composer on CentOS 8

---

Composer is basically a dependency manager for the programming language, PHP. It functions as some sort of project manager that helps the programmer manage dependencies that will be used on a project to project basis.

Installing PHP

---

dnf install @php

Output:

[root@vps ~]# dnf install @php
Last metadata expiration check: 0:14:17 ago on Fri 25 Dec 2020 03:00:28 AM EST.
Dependencies resolved.
================================================================================
    Package       Arch    Version                                 Repository  Size
================================================================================
Installing group/module packages:
    php-mbstring  x86_64  7.2.24-1.module_el8.2.0+313+b04d0a66    AppStream  580 k
    php-xml       x86_64  7.2.24-1.module_el8.2.0+313+b04d0a66    AppStream  188 k
Installing dependencies:
    libxslt       x86_64  1.1.32-5.el8                            BaseOS     250 k
Installing module profiles:
    php/common

Transaction Summary
================================================================================
Install  3 Packages

Total download size: 1.0 M
Installed size: 2.8 M
Is this ok [y/N]: y

Download Composer installer

---

dnf -y install wget

Output:

[root@vps ~]# dnf -y install wget
Last metadata expiration check: 0:14:45 ago on Fri 25 Dec 2020 03:00:28 AM EST.
Dependencies resolved.
================================================================================
    Package       Architecture    Version                 Repository          Size
================================================================================
Installing:
    wget          x86_64          1.19.5-10.el8           AppStream          734 k

Transaction Summary
================================================================================
Install  1 Package

Total download size: 734 k
Installed size: 2.8 M

To install Composer locally by running following command

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

Output:

[root@vps ~]# wget https://getcomposer.org/installer -O composer-installer.php
--2020-12-25 03:15:18--  https://getcomposer.org/installer
Resolving getcomposer.org (getcomposer.org)... 142.44.245.229, 2607:5300:201:210                                                                                        0::4:d105
Connecting to getcomposer.org (getcomposer.org)|142.44.245.229|:443... connected                                                                                        .
HTTP request sent, awaiting response... 200 OK
Length: 58460 (57K) [application/octet-stream]
Saving to: ‘composer-installer.php’

composer-installer. 100%[===================>]  57.09K  --.-KB/s    in 0.1s

2020-12-25 03:15:19 (414 KB/s) - ‘composer-installer.php’ saved [58460/58460]

Installing PHP Composer

---

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

Output:

[root@vps ~]# php composer-installer.php --filename=composer --install-dir=                                                                                        /usr/local/bin
All settings correct for using Composer
Downloading...

Composer (version 2.0.8) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer

Verify the PHP Composer version once installation is done

composer --version

Output:

[root@vps ~]# composer --version
Composer version 2.0.8 2020-12-03 17:20:38

Testing Composer

---

To test your installation, run the following command.

composer

Output:

[root@vps ~]# composer --version
Composer version 2.0.8 2020-12-03 17:20:38
[root@vps ~]# composer
 ______
/ ____/___  ____ ___  ____  ____  ________  _____
/ /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                      /_/
Composer version 2.0.8 2020-12-03 17:20:38

Usage:
        command [options] [arguments]

Options:
        -h, --help                     Display this help message
        -q, --quiet                    Do not output any message