I have a column in a table where the value is only a letter. The column name is ‘place’. When selecting everything from the table grouped by ‘place’, the letter A and the Danish letter Å is placed together. Why is that?

The encoding for the table is utf8mb3_general_ci and header of the PHP script is set to utf8.

I have tried to change the header of the PHP to iso-8859-1 with no luck.