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  $img=imagecreatefromgif("smiley.gif");

  $color=imagecolorallocate($img,0,0,255);      //Blau...

  imagettftext($img,14,0,0,0,$color,"verdana.ttf",$zahl);
  //imagettftext($img,$size,$angle,$x,$y,$color,$font,$text);

  header("Content-Type: image/gif");
  imagegif($img);