[Symfony] Install, Setup and Run the First Project

This is a simplified version based on my experience of building a symfony project.

Pre-requirement:

- PHP 5.4 or higher

- Apache or other web server

- Composer

Installing the Symfony Installer

# Linux, Mac OS X

$ sudo curl -LsS http://symfony.com/installer -o /usr/local/bin/symfony

$ sudo chmod a+x /usr/local/bin/symfony

# Windows

c:\> php -r "readfile('http://symfony.com/installer');" > symfony

c:\> move symfony c:\projects
c:\projects\> php symfony

Create a Symfony application

# Linux, Mac OS X

$ symfony new my_project_name

# Windows

c:\> cd projects/

c:\projects\> php symfony new my_project_name

Setting up Permissions

One common issue when installing Symfony is that the app/cache and app/logs directories must be writable both by the web server and the command line user.

$ rm -rf app/cache/*

$ rm -rf app/logs/*

$ HTTPDUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx' | grep -v root | head -1 | cut -d\  -f1`

$ sudo chmod +a "$HTTPDUSER allow delete,write,append,file_inherit,directory_inherit" app/cache app/logs

$ sudo chmod +a "`whoami` allow delete,write,append,file_inherit,directory_inherit" app/cache app/logs

For system doesn't support 'chmod +a':
$ HTTPDUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx' | grep -v root | head -1 | cut -d\  -f1`
$ sudo setfacl -R -m u:"$HTTPDUSER":rwX -m u:`whoami`:rwX app/cache app/logs
$ sudo setfacl -dR -m u:"$HTTPDUSER":rwX -m u:`whoami`:rwX app/cache app/logs
 

Running the Symfony Application

$ cd my_project_name/

$ php app/console server:run

To view it in your browser, input: http://localhost:8000.

Access ‘http://localhost:8000/config.php’ to check configs.

$ php app/console server:stop

Symfony provides a command to check whether your project's dependencies contain any known security vulnerability:

$ php app/console security:check

Checking out a versioned Symfony Application

$ cd my_project_name/
$ composer install

How does Composer know which specific dependencies to install?

When a Symfony application is committed to a repository, the composer.json and composer.lock files are also committed. These files tell Composer which dependencies (and which specific versions) to install for the application.

Updating Symfony Applications

• sudo composer self-update
• cd project-path
• sudo composer update

Before you begin, Create a Bundle.

A bundle is nothing more than a directory that houses everything related to a specific feature, including PHP classes, configuration, and even stylesheets and JavaScript files
 $ php app/console generate:bundle --namespace=Acme/DemoBundle --format=yml

Creating a new page in Symfony is a simple two-step process:

• Create a route: A route defines the URL (e.g. /about) to your page and specifies a controller (which is a PHP function) that Symfony should execute when the URL of an incoming request matches the route path;
• Create a controller: A controller is a PHP function that takes the incoming request and transforms it into the Symfony Response object that's returned to the user.

 

References

symfony installation