Imagettftext with opentype font possible?

[Gunnar Polte <g.polte@xxxxxx>]

Hello,

is it possible to use the special characters like ö, ü, ö, ß from opentype (otf) fonts in PHP?

I tried to that and it was not possible. I only get a square output.
I used this: 
ImageTTFText ($image, 30, 0, 0, 40, $font,"tmp/AnieneNuovaEF-Regular.otf",$text);
With TTF fonts it was possible.

Best
Gunnar