Sorting with the UCA in PHP
Sorting using the Unicode Collation Algorithm (UCA) is available with the
Collator class in PHP 5.3.0 or in the PECL extension
$collator = new Collator(''); $collator->sort();
Collator class also provides the
asort method, which corresponds to the
Collator class also supports linguistic tailoring.
$collator = new Collator('de'); $collator->sort();