How to sort an array of UTF-8 strings?

Question

I currentyl have no clue on how to sort an array which contains UTF-8 encoded strings in PHP. The array comes from a LDAP server so sorting via a database (would be no probl

Answer 1

Update on this issue:

Even though the discussion around this problem revealed that we could have discovered a PHP bug with strcoll() and/or setlocale(), this is clearly not the case. The problem is rather a limitation of the Windows CRT implementation of setlocale() (PHPs setlocale() is just a thin wrapper around the CRT call). The following is a citation of the MSDN page "setlocale, _wsetlocale":

The set of available languages, country/region codes, and code pages includes all those supported by the Win32 NLS API except code pages that require more than two bytes per character, such as UTF-7 and UTF-8. If you provide a code page like UTF-7 or UTF-8, setlocale will fail, returning NULL. The set of language and country/region codes supported by setlocale is listed in Language and Country/Region Strings.

It therefore is impossible to use locale-aware string operations within PHP on Windows when strings are multi-byte encoded.