How to make symfony Controller variable a global? - symfony

Question

public indexFunction(){
$var = 'Apple';
//set $var global
}
So that $var can be accessed in base template.

Answer 1

if you want it as static value just put it in the config file:
# app/config/config.yml
twig:
globals:
var: 'Apple'
if you want it as dynamic variable you can give the twig the service id:
twig:
globals:
# the value is the service's id
var: '#AppBundle\Service\yourData'

Answer 2

You have to pass the variable to the template:
// AppBundle/Controller/DefaultController.php
public indexFunction()
{
$var = 'Apple';
return $this->render('index.html.twig', array(
'var' => $var,
));
}
If you really want to have a global variable available to all of your templates you should set it in your twig config:
# app/config/config.yml
twig:
globals:
var: 'value'
after that you can write out the value of the variable in the twig template with {{ var }}
EDIT:
Or finally example using session - saving the variable into the session
// AppBundle/Controller/DefaultController.php
public indexFunction()
{
$var = 'Apple';
$session = $this->get('session');
$session->set('var', $var);
...
}
after that you can retrieve it in the twig template like this
{# /app/Resources/views/base.html.twig #}
{{ app.session.get('var') }}

Answer 3

Dynamic:
In the bundle path (Example: src/AppBundle) add a file called "YourNameTwigExtension.php". This file will be a class (YourNameTwigExtension) that extends "\Twig_Extension" class and implements the interface "\Twig_Extension_GlobalsInterface". Inside the "YourNameTwigExtension" class implement the getGlobals() method. Example:
//....
class YourNameTwigExtension extends \Twig_Extension implements \Twig_Extension_GlobalsInterface {
//...
public function getGlobals() {
$data = array();
$data['user'] = $this->session->get('user');
$data['menu'] = $this->session->get('menu');
$data['actions'] = $this->session->get('actions');
$data['view'] = $this->session->get('view');
return $data;
}
}
In TWIG you will use: {{ user }}, {{ menu }}, {{ actions }}, etc...
Warning: Add in app/config/services.yml:
twig.extension.yourname_twig_extension:
class: YourBundle\YourNameTwigExtension
tags:
- { name: twig.extension }
Static:
If you need to use the static variables, in app/config/parameters.yml:
twig:
globals:
portal_name: 'Portal'
portal_img_logo: logo.png
portal_favicon: favicon.ico
logowidth: 350px
Symfony Doc: How to Inject Variables into all Templates (i.e. global Variables)
Sorry my English.. Good Work!