How can developers ensure consistent sorting results when using asort in PHP across different PHP versions like 5.5 and 7.1?

When using `asort` in PHP, developers may encounter inconsistent sorting results across different PHP versions due to changes in the underlying sorting algorithm. To ensure consistent sorting results, developers can specify the sorting flags parameter as `SORT_REGULAR` to explicitly define the comparison method. This will ensure that the sorting behavior remains consistent across different PHP versions.

$array = ['b' => 2, 'a' => 1, 'c' => 3];
asort($array, SORT_REGULAR);