ciryllic sort array

sort array

<?php
uasort($employees, function($a, $b) {
    $a = mb_strtolower($a['name'], 'utf-8');
    $b = mb_strtolower($b['name'], 'utf-8');

    if ($a == $b) {
    return 0;
    }

    return ($a < $b) ? -1 : 1;
});