Programmatically create attribute of type select and options

Question

I am having following category structure.

Category 1
Category 2
Category 3
    - Category 3.1
        - Category 3.1.1
        - Category 3.1.2
        - Category 3.1.3
        - Category 3.1.4
        - Category 3.1.5
    - Category 3.2
        - Category 3.2.1
        - Category 3.2.2
        - Category 3.2.3
        - Category 3.2.4
        - Category 3.2.5
    - Category 3.3
        - Category 3.3.1
        - Category 3.3.2
        - Category 3.3.3
        - Category 3.3.4
        - Category 3.3.5
Category 4

In my layered navigation I need this as follows:

Category 3.1 (attribute)
    - Category 3.1.1 (options)
    - Category 3.1.2 (options)
    - Category 3.1.3 (options)
    - Category 3.1.4 (options)
    - Category 3.1.5 (options)

Category 3.2 (attribute)
    - Category 3.2.1 (options)
    - Category 3.2.2 (options)
    - Category 3.2.3 (options)
    - Category 3.2.4 (options)
    - Category 3.2.5 (options)

I need to make this dynamically and programmatically.

Please let me know how to achieve this.

Answer 1

If you are trying to create a Layered Navigation then all you need to do is make the category an Anchor by setting is Anchor to "Yes" in the category page then make sure that the Attributes for your product are able to be used in a Layered Navigation.