Can I get list of both posts and subcategories in AZ order?

I have category that looks like this:

category 1

subcategory 1
- post 1-1
- post 1-2
another subcategory 2
- post 2-1
post 1
post 2
post 3

What I'm trying to achieve is list of posts and subcategories from category 1:

another subcategory 2
post 1
post 2
post 3
subcategory 1

i.e. in alphabetical order and without posts from subcategories.

I can get list of subcategories (using get_categories), I can get list of posts (using get_posts) but I'm not able to get both (subcategory and post) in one list that can be in A-Z order.

Solution

Combine the arrays with array_merge, then use usort to alphabetize. You won't find a standard function that does this for you.