How to Install PHP Composer on Ubuntu Linux

Install PHP

To install PHP on Ubuntu for your web projects, open your terminal and run the sudo apt install php command. This downloads and sets up the default version of PHP that comes with your current Ubuntu software repositories, giving you the base environment you need before you can install PHP Composer Ubuntu.

sudo apt install php

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:ondrej/php
sudo apt update

Now simply run the commands below to install PHP 7.4. change the number value to install 7.2, 7.3, and so forth.

sudo apt install php7.4

Install Composer

To install PHP Composer on Ubuntu, run the curl -sS https://getcomposer.org/installer | sudo php — –install-dir=/usr/local/bin –filename=composer command in your terminal. This downloads the package installer and places the file in your system path so you can run dependency management commands from any project folder.

curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer

The commands above will download Composer from its maintainer page and install it into the /usr/local/bin directory. This is a local-global directory for application executables.

All settings correct for using Composer
Downloading.

Composer (version 1.6.4) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer

Now simply run the commands below to test whether Composer is installed.

composer

The output should look like something below.

   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ / __ `__ / __ / __ / ___/ _ / ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
____/____/_/ /_/ /_/ .___/____/____/___/_/
                    /_/
Composer version 1.6.4 2018-04-13 12:04:24

Usage:
  command [options] [arguments]

Options:
  -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.
  -v|vv|vvv, --verbose           Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

When you want to install a PHP-based application that requires Composer, simply reference this page to learn how to install Composer. After that, continue with getting your PHP application on Ubuntu.

Composer can also be upgraded by running specific commands. Running `composer self-update` upgrades Composer itself to the latest version, while running `composer update` upgrades all packages managed by your Composer project, ensuring your dependencies are current and secure.

sudo composer self-update

That's it!

Conclusion:

In summary, installing PHP Composer on Ubuntu is a straightforward process that enhances your ability to manage PHP dependencies effectively. Here are the key points to remember:

• PHP Composer is essential for managing PHP package dependencies, allowing for easier installation and updates.
• Ensure that PHP 5.3 or higher is installed before attempting to install Composer.
• The installation process involves configuring your package sources, installing PHP, and then Composer.
• Composer commands can be used to manage packages as well as update Composer itself when necessary.
• Refer back to this guide whenever you need to install Composer for your PHP projects on Ubuntu.

By following these steps, you can efficiently manage your PHP applications and their dependencies.