Online PHP editor | output for kV21S

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2: array(4) { ["A"]=> string(5) "moose" ["D"]=> string(3) "dog" ["a"]=> string(3) "cat" ["d"]=> string(5) "mouse" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Notice: Use of undefined constant SORT_FLAG_CASE - assumed 'SORT_FLAG_CASE' in /in/kV21S on line 6 Warning: ksort() expects parameter 2 to be long, string given in /in/kV21S on line 6 array(4) { ["D"]=> string(3) "dog" ["a"]=> string(3) "cat" ["A"]=> string(5) "moose" ["d"]=> string(5) "mouse" }