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

I think you can use strcoll:

setlocale(LC_COLLATE, 'nl_BE.utf8');
$array = array('Borgloon','Thuin','Lennik','Éghezée','Aubel');
usort($array, 'strcoll'); 
print_r($array);

Result:

Array
(
    [0] => Aubel
    [1] => Borgloon
    [2] => Éghezée
    [3] => Lennik
    [4] => Thuin
)

You need the nl_BE.utf8 locale on your system:

fy@Heisenberg:~$ locale -a | grep nl_BE.utf8
nl_BE.utf8

If you are using debian you can use dpkg --reconfigure locales to add locales.