How To Install and Use PHP Composer on Ubuntu 18.04 | aws-ec2
Posted on: January 29, 2020 12:18 PM
Posted by: Renato
Views: 394
Composer is a dependency manager for PHP (similar to npm for Node.js or pip for Python). Composer will pull in all the required PHP packages your project depends on and manage them for you.
In this tutorial, we’ll show you how to install and use Composer on an Ubuntu 18.04 machine. The same steps can be used for Ubuntu 16.04.
Prerequisites
Installing PHP Composer
To install Composer on your Ubuntu system, perform the following steps:
Before downloading and installing Composer, first update the packages index and install the necessary requirements:
sudo apt update sudo apt install wget php-cli php-zip unzip
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
- The command above will download the
composer-setup.phpfile in the current working directory. - Next, we need to verify the data integrity of the script by comparing the script
SHA-384hash with the latest installer hash found on the Composer Public Keys / Signatures page.We will use the following wget command to download the expected signature of the latest Composer installer from the Composer’s Github page and store it in a variable namedHASH:
$ HASH="$(wget -q -O - https://composer.github.io/installer.sig)"
$ php -r "if (hash_file('SHA384', 'composer-setup.php') === '$HASH') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
$ sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer
The last step is to verify the installation:
$ composer
______
/ ____/___ ____ ___ ____ ____ ________ _____
/ / / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__ ) __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
/_/
Composer version 1.8.5 2019-04-09 17:46:47
Usage:
command [options] [arguments]
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