How to install & start using Composer
Composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.
Composer requires PHP 5.3.2+ to run. A few sensitive PHP settings and compile flags are also required, but when using the installer you will be warned about any incompatibilities.
Composer offers a convenient installer that you can execute directly from the command line in Linux.
Download Composer from the official website using the following command:
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
Install Composer globally as a system wide executable:
php composer-setup.php --install-dir=/usr/local/bin --filename=composer --version=1.10.20
We've forced the version 1.10.20 to be installed, you can skip this parameter to install the latest version.
Once it’s done, remove the installer:
php -r "unlink('composer-setup.php');"
In order to check the installation and start using the manager all you need to do is type composer in your terminal. You will see an image as below and a list of available composer commands: