sf4.0

composer create-project symfony/skeleton my-project
composer req symfony/profiler-pack

composer require symfony/asset
composer require symfony/validator
composer require twbs/bootstrap
composer require annotations    

composer require translator
composer require form
composer require symfony/security-csrf

composer req symfony/phpunit-bridge
composer require browser-kit
composer require knplabs/knp-paginator-bundle
composer require security
php bin/phpunit 

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https://github.com/symfony/maker-bundle/tree/master/src/Maker

composer require doctrine maker

(apt-get install php7.1-mysql)

.env:

DATABASE_URL=mysql://db_user:db_password@127.0.0.1:3306/db_name

php bin/console doctrine:database:create
php bin/console doctrine:migrations:diff

php bin/console doctrine:migrations:migrate

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php bin/console make:entity Product
php bin/console make:controller ProductController

php bin/console cache:clear