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How can I define global variables inside a twig template file?

Is it possible to set global variables in a twig file, so that I can access that variables from other files, macros and blocks.

For example, I want to have variables.twig file and in it set my variables and then I can include it in other templates.

I know that setting global variables is possible from the framework (e.g. Symfony) but I want a solution using twig features only.

Solution

  • Using Symfony configuration

    If you are using Symfony2+, you can set globals in your config.yml file:

    # app/config/config.yml
twig:
    # ...
    globals:
        myStuff: %someParam%

    And then use {{ myStuff }} anywhere in your application.

    Using Twig_Environment::addGlobal

    If you are using Twig in another project, you can set your globals directly in the environment:

    $twig = new Twig_Environment($loader);
$twig->addGlobal('myStuff', $someVariable);

    And then use {{ myStuff }} anywhere in your application.

    Using a Twig template

    When you're including a piece of Twig code, you're only including the rendered view coming from that code, not the code itself. So it is by design not possible to include a set of variables the way you are looking for.