Answers for "twig new variable"

twig set variable

{% set foo = 'bar' %}

twig is set variable

{# defined works with variable names #}
{% if foo is defined %}
    ...
{% endif %}

{# and attributes on variables names #}
{% if foo.bar is defined %}
    ...
{% endif %}

{% if foo['bar'] is defined %}
    ...
{% endif %}

twig set variable

{% set foo = 'bar' %}			{# string #}
{% set foo = 12 %}				{# integer #}
{% set foo = [1, 2] %} 			{# array #}
{% set foo = {'foo': 'bar'} %} 	{# objet #}