How to populate a dropdown from result_array

what you get from the model is an array with departments, the array being an indexed array, but when you pass the data to the dropdown you simply pass it an array which doesn't exist: $departments['names'].

I updated my question. I later realised I was passing the result_array to the wrong view. Now I have a new error. The dropbox is only showing the first Department name and its id. Iwant it to show all the departments only with the id hidden