How can I define global variables inside a twig template file?
Question
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 (eg Symfony) but I want a solution using twig features only.
4 answers
solution1
34 ACCPTED 2015-03-10 08:32:55
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.
solution2
1 2020-07-20 12:33:09
Since Symfony 4 , you can set the globals in config/packages/twig.yaml .
# config/packages/twig.yaml
twig:
# ...
globals:
ga_tracking: 'UA-xxxxx-x'
solution3
1 2020-10-14 11:33:54
It seems that you can assign global READONLY variables in your top-level template and use them in all underlying templates. But you can't override them of course. It covers my case, maybe will be useful for somebody else.
base.html.twig
<!DOCTYPE html>
{# assign global vars here #}
{% set myReadonlyJar = your_custom_ext_twig_function() %}
<html>
<body>
{% block body %}{% endblock %}
</body>
</html>
my_page.twig
{% extends 'stack/base.html.twig' %}
{% block body %}
{{ myReadonlyJar.v1 }}
{{ myReadonlyJar.v2 }}
{{ include('stack/deep.twig') }}
{% endblock %}
deep.twig
Check top vars very deep inside: <br>
{{ myReadonlyJar.v2 }}
solution4
0 2022-01-01 23:29:05
Using SlimFramework and Twig-View:3.0
You can use the following method Twig::offsetSet
$twig = Twig::create('view/templates');
$twig->offsetSet('globalVar', 'globalVarValue');
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