3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ "2" => "abc", "3" => "aBc", "65" => "Abc", "ab" => "abc12", "lkT" => 2, 45 => "test", "This" => "is this", false => "abc012", " " => 22.22, ]; print_r($array); natcasesort($array); print_r($array);
Output for 7.1.25 - 7.1.33, 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 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1 - 8.4.2
Array ( [2] => abc [3] => aBc [65] => Abc [ab] => abc12 [lkT] => 2 [45] => test [This] => is this [0] => abc012 [ ] => 22.22 ) Array ( [lkT] => 2 [ ] => 22.22 [2] => abc [3] => aBc [65] => Abc [0] => abc012 [ab] => abc12 [This] => is this [45] => test )

preferences:
71.2 ms | 408 KiB | 5 Q