err...
lets c...
if u simply want to change those german characters into HTML, then u can do it like this:
$string = str_replace("ß","ß",$string);
$string = str_replace("ä","ä",$string);
$string = str_replace("Ä","Ä",$string);
$string = str_replace("ü","ü",$string);
$string = str_replace("Ü","Ü",$string);
$string = str_replace("ö","ö",$string);
$string = str_replace("Ö","Ö",$string);
...hope that was ur question,
so long,
Duncan McLord