attribute

The attribute function can be used to access a “dynamic” attribute of a variable:

{{ attribute(object, method) }}
{{ attribute(object, method, arguments) }}
{{ attribute(array, item) }}

In addition, the defined test can check for the existence of a dynamic attribute:

{{ attribute(object, method) is defined ? 'Method exists' : 'Method does not exist' }}

Note

The resolution algorithm is the same as the one used for the . notation, except that the item can be any valid expression.

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https://twig.symfony.com/doc/2.x/functions/attribute.html