Description:
------------
When you access a multibyte character in an UTF-8 encoded string using array 
brackets [] it only returns the first byte instead of the full character.

WindowsXP SP3 PHP 5.3.0
WindowsXP SP3 PHP 5.3.2
Linux Debian  PHP 5.2.6-1+lenny8
Linux Debian  PHP 5.3.2-0.dotdeb.2

PHP Ini settings:
default_charset = "utf-8"
mbstring.internal_encoding = UTF-8
mbstring.func_overload = 7

http://us.php.net/manual/en/language.types.string.php#language.types.string.substr

Test script:
---------------
<?php

    $sStr = "André";

    var_dump($sStr);
    var_dump($sStr[4]);

?>

Expected result:
----------------
string(6) "André" 
string(1) "é"

Actual result:
--------------
string(6) "André" 
string(1) "�"