Creating an array with items from database column

I’m trying to populate an array with the input of my database column named “title” from a table called Titles.

So essentially I want to create an array like this:

$array = array("foo", "bar", "hello", "world");

Where foo is a title, bar is a title, etc. (Except the title comes from the database, not the array declaration).

I tried this code:

$titlelist = Titles::find()





But this code puts an array into the array $titlelist (instead of just the string "foo"), which is not what I want. (Or atleast this is what I think it does. My error message says array to string conversion).

Any thoughts on how I can get this done easily?

$titlelist = Titles::find()