Global variables in Twig

globals-in-twig.md

Globals in Twig

A few ways of dealing with global variables in Twig. Demonstrated at https://twigfiddle.com/ork0hv/2

globals.twig

{% block a %}{{ x ?? 5-4 }}{% endblock %}

{% block b '2' %}

macros--globals.twig

{% macro d() %}4{% endmacro %}

macros.twig

{% macro e() %}5{% endmacro %}

{% macro f(n) %}
    {{ n * block('b', 'globals.twig') }}
{% endmacro %}

main.twig

`use`ing is convenient if you have several variables in one file.

{% use 'globals.twig' %}
{{ block('a') }}
{{ block('b') }}
{{ 5 - block('a') }}

Individual blocks can be pulled in from individual templates.

{{ block('c','more-globals.twig') }}
{{ 1 - block('c','more-globals.twig') }}


For ease of resuse, assign these to local variables:

{% set a = block('a') %}
{% set b = block('b') %}
{% set c = block('c', 'more-globals.twig') %}

{{ a + b + c }}

But the most compact is to use macros, either under a name

{% import 'macros--globals.twig' as globals %}
{{ globals.d }}


or not

{% from 'macros.twig' import e %}
{{ e() }}


though you can't operate on those:

{{ e() + 1 }} is 2 not 6, {{ e() - 1 }} is 0 not 4.


And you can combine `block()` and `macro` to use global values in a macro:

{% import 'macros.twig' as macros %}
{{ macros.e(3) }}

more-globals.twig

{% block c %}3{% endblock %}

output

`use`ing is convenient if you have several variables in one file.

1
2
4

Individual blocks can be pulled in from individual templates.

3
-2

For ease of resuse, assign these to local variables:

6

But the most compact is to use macros, either under a name

4

or not

5

though you can't operate on those:

2 is 2 not 6, 0 is 0 not 4.

And you can combine `block()` and `macro` to use global values in a macro:

5