Dynamic variable in Twig, example?

Question

I don't quite understand how the attribute function in Twig works. Can somebody help me with an example? I have a field in a SQL that is named dynamic. I could be eg "field27", but I don't know the number, the number is saved in radio.id. I would like to do someting like this: ``` {% for radio in gruppeType.radios %} {% endfor %} ``` How can I use field + radio.id as the name of the twig-variable?

Accepted Answer

You can build the field name with a variable, then use it in the attribute function to access the data within the object/array. As example:

```
{% set fieldName = "field" ~ radio.id %}

{{ attribute(gruppeType, fieldName) }}
```

A working example can be seen in this twigfiddle

Hope this helps.

Dynamic variable in Twig, example?

Solution

Problem