$arr = [ 'foo' => 'bar', 'faz' => 'baz' ]; array_multisort(array_column($arr, 'value'), SORT_ASC, $arr);
You can sort an associative array with one line of code as I did above. As a result, the array becomes sorted by the keys:
[ 'faz' => 'baz', 'foo' => 'bar' ]
Sorting Associative Arrays in PHP