Steps to Install Packages from Composer1. Download Composercurl -sS https://getcomposer.org/installer | php2. Install the Composer Filephp composer.phar install3. Now search and add the package from the URLhttps://packagist.org4. Add the package name to Composer.json"require": {"bobthecow/mustache-bundle" : "1.2.0"}ORYou can also add the package by below commandphp composer.phar require bobthecow/mustache-bundle5. Update the composerphp composer.phar update