A combination of the below functions to enable ucfirst for multibyte strings in a shared hosting environment (where you can not always count on mbstring to be installed):
<?php
function my_mb_ucfirst($str, $e='utf-8') {
if (function_exists('mb_strtoupper')) {
$fc = mb_strtoupper(mb_substr($str, 0, 1, $e), $e);
return $fc.mb_substr($str, 1, mb_strlen($str, $e), $e);
}
else {
$str = utf8_decode($str);
$str[0] = strtr($str[0],
"abcdefghýijklmnopqrstuvwxyz".
"\x9C\x9A\xE0\xE1\xE2\xE3".
"\xE4\xE5\xE6\xE7\xE8\xE9".
"\xEA\xEB\xEC\xED\xEE\xEF".
"\xF0\xF1\xF2\xF3\xF4\xF5".
"\xF6\xF8\xF9\xFA\xFB\xFC".
"\xFE\xFF",
"ABCDEFGHÝIJKLMNOPQRSTUVWXYZ".
"\x8C\x8A\xC0\xC1\xC2\xC3\xC4".
"\xC5\xC6\xC7\xC8\xC9\xCA\xCB".
"\xCC\xCD\xCE\xCF\xD0\xD1\xD2".
"\xD3\xD4\xD5\xD6\xD8\xD9\xDA".
"\xDB\xDC\xDE\x9F");
return utf8_encode($str);
}
}
?>