Solved Kunena 5.1.1.6 Hochkant Bilder werden nicht mehr gedreht

public static function correctImageOrientation($filename)
{
$testForJpg = @getimagesize($filename);

if ($testForJpg[2] == 2)
{
if (function_exists('exif_read_data'))
{
$deg = 0;
$exif = @exif_read_data($filename);
$flip = '';
$img = '';

if ($exif && isset($exif))
{
$orientation = $exif;

if ($orientation != 1)
{
$img = @imagecreatefromjpeg($filename);

switch ($orientation)
{
case 1: // Nothing
$deg = 0;
$flip = 0;
break;

case 2: // Horizontal flip
$deg = 0;
$flip = 1;
break;

case 3: // 180 rotate left
$deg = 180;
$flip = 0;
break;

case 4: // Vertical flip
$deg = 0;
$flip = 2;
break;

case 5: // Vertical flip + 90 rotate
$deg = 90;
$flip = 2;
break;

case 6: // 270 rotate left
$deg = 270;
$flip = 0;
break;

case 7: // Horizontal flip + 90 rotate
$deg = 90;
$flip = 1;
break;

case 8: // 90 rotate left
$deg = 90;
$flip = 0;
break;
}
}
}

// do not rotate if browser is Chrome or Opera
if ( (JFactory::getApplication()->client->browser == 19) || // CHROME
(JFactory::getApplication()->client->browser == 21) ) // OPERA
{
$deg = 0;
}

if ($deg > 0)
{
$img = @imagerotate($img, $deg, 0);
}

if ($flip != 0)
{
if ($flip == 1)
{
@imageflip($img, IMG_FLIP_HORIZONTAL);
}
else
{
@imageflip($img, IMG_FLIP_VERTICAL);
}
}

@imagejpeg($img, $filename, 95);
}
}
}