Use PHP Composer on CentOS Computers

PHP Tutorials - Herong's Tutorial Examples

∟Managing PHP Engine and Modules on CentOS

∟Use PHP Composer on CentOS Computers

This section provides a tutorial example on how to install PHP Composer to manage PHP packages on CentOS systems.

What is PHP Composer? PHP Composer is an extension package manager for the PHP environment. Composer will pull in all the required extension packages your PHP script depends on and manage them for you.

Here is what I did to install PHP Composer on my CentOS 8 computer.

1. Install required tools:

herong$ sudo dnf install php-cli php-zip wget unzip

2. Download the Composer setup script:

herong$ sudo php -r \
  "copy('https://getcomposer.org/installer', 'composer-setup.php');"

3. Run Composer setup script:

herong$ sudo php composer-setup.php --install-dir=/usr/local/bin \
  --filename=composer

All settings correct for using Composer
Downloading...
Composer (version 2.1.3) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer

4. Try Composer command:

herong$ /usr/local/bin/composer
   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                    /_/
Composer version 2.1.3 2021-06-09 16:31:20

Usage:
  command [options] [arguments]

...
Available commands:
  about     Shows a short information about Composer.
  archive   Creates an archive of this composer package.
  config    Sets config options.
  exec      Executes a vendored binary/script.
  help      Displays help for a command
  info      Shows information about packages.
  list      Lists commands
  require   Adds required packages to your composer.json and installs them.
  ...

5. Run "composer show --platform" command to show all PHP packages on the platform.

herong$ sudo /usr/local/bin/composer show --platform
composer-plugin-api    2.1.0      The Composer Plugin API
composer-runtime-api   2.1.0      The Composer Runtime API
ext-calendar           7.2.24     The calendar PHP extension
ext-ctype              7.2.24     The ctype PHP extension
ext-curl               7.2.24     The curl PHP extension
ext-date               7.2.24     The date PHP extension
ext-dom                20031129   The dom PHP extension
ext-exif               7.2.24     The exif PHP extension
ext-fileinfo           1.0.5      The fileinfo PHP extension
ext-filter             7.2.24     The filter PHP extension
ext-ftp                7.2.24     The ftp PHP extension
ext-gettext            7.2.24     The gettext PHP extension
ext-hash               1.0        The hash PHP extension
ext-iconv              7.2.24     The iconv PHP extension
ext-json               1.6.0      The json PHP extension
ext-libxml             7.2.24     The libxml PHP extension
ext-mbstring           7.2.24     The mbstring PHP extension
ext-mysqli             7.2.24     The mysqli PHP extension
...
lib-bz2                1.0.6      The bz2 library
lib-curl               7.61.1     The curl library
lib-curl-libssh        0.9.4      curl libssh version
lib-curl-openssl       1.1.1.7    curl OpenSSL version (1.1.1.7)
lib-curl-zlib          1.2.11     curl zlib version
lib-date-timelib       2017.09    date timelib version
lib-date-zoneinfo      0          zoneinfo ("Olson") database for date
lib-fileinfo-libmagic  531        fileinfo libmagic version
lib-iconv              2.28       The iconv library
lib-libxml             2.9.7      libxml library version
lib-libxslt            1.1.32     The libxslt library
...
php                    7.2.24     The PHP interpreter
php-64bit              7.2.24     The PHP interpreter, 64bit
php-ipv6               7.2.24     The PHP interpreter, with IPv6 support