How can I sort an array of UTF-8 strings in PHP?

Question

need help with sorting words by utf-8. For example, we have 5 cities from Belgium.

$array = array(\'Borgloon\',\'Thuin\',\'Lennik\',\'Éghezée\',\'Aubel\');
s         


        

Answer 1

If you want to use native solution, so i can propose this one

function compare($a, $b)
{
        $alphabet = 'aąbcćdeęfghijklłmnnoóqprstuvwxyzźż'; // i used polish letters
        $a = mb_strtolower($a);
        $b = mb_strtolower($b);

        for ($i = 0; $i < mb_strlen($a); $i++) {
            if (mb_substr($a, $i, 1) == mb_substr($b, $i, 1)) {
                continue;
            }
            if ($i > mb_strlen($b)) {
                return 1;
            }
            if (mb_strpos($alphabet, mb_substr($a, $i, 1)) > mb_strpos($alphabet, mb_substr($b, $i, 1))) {
                return 1;
            } else {
                return -1;
            }
        }
}

usort($needed_array, 'compare');

Not sure, that is the best solution, but it works for me =)