la documentazione più efficace:
bundles notevoli:



Clone the master branch from https://github.com/symfony/symfony-standard
and then use composer to install the dependencies:
php bin/composer.phar install
create your application(Boundle in sf2 terms)
php app/console generate:bundle --namespace=Acme/HelloBundle --format=yml
<VirtualHost *:80>
ServerName www.domain.com.localhost
ServerAlias domain.com.localhost
ServerAdmin webmaster@localhost
DocumentRoot /home/user/www/project/web
<Directory /home/user/www/project/web/>
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /app.php [QSA,L]
</IfModule>
</Directory>
</VirtualHost>
php app/console cache:clear --env=prod --no-debug php app/console assets:install web_directory php app/console assetic:dump web_directory