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 intl.

$collator = new Collator('');


The Collator class also provides the asort method, which corresponds to the core asort function.

Linguistic tailoring

The Collator class also supports linguistic tailoring.

$collator = new Collator('de');