Loop through multiple array concat and sort by value

I have a array that describe a database table and it's relations.

Assume we have a products table with following fields:

• product_id
  column1
  column2
  column_three
  

and based on the table I create a object with the details.

PHP Code:

Array
(
 [pk] => product_id
 [Fields] => Array
    (
        [column1] => stdClass Object
            (
                [Position] => 1
                [Label] => Column1
            )

        [column2] => stdClass Object
            (
                [Position] => 3
                [Label] => Column2
            )

        [column_three] => stdClass Object
            (
                [Position] => 4
                [Label] => Column Three
            )
 //and here are the relations
 [Relations] => Array
    (
        //the field category_name from category model
        [category_name] => stdClass Object
            (
                [Position] => 2
                [Label] => Category Name
                [Model] => category
                [Relation] => belongs_to
                [PK] => id_categorie
            )

        [image_name] => stdClass Object
            (
                [Position] => 5
                [Label] => Image Name
                [Model] => image
                [Relation] => has_one
                [PK] => image_id
                [Through] => product_id
            )

    ) 


How can I loop this array in view so I can get the labels to create a table with the following thead ordered by position?

Column1 | Category Name | Column2 | Column Three | Image Name

When merging the arrays must check if a field from main table has same name with from relation table and if yes add a suffix.

I would suggest that you build your page array in a controller or library and only pass the data to your page that your view actually requires and in a format fit for that view. This will help you to avoid complex array manipulation within a view.