public static function getImageOrientation($imageFile) {
		if (!file_exists($imageFile)) {
			throw new \RuntimeException(sprintf('File %s not found!', $imageFile));
		}
		$exif = exif_read_data($imageFile);
		if ($exif === false) {
			return false;
		}
		$angle = 0;
		if (!empty($exif['Orientation'])) {
			switch ($exif['Orientation']) {
				case 0:
					$angle = 0;
					break;
				case 3:
					$angle = 180;
					break;
				case 6:
					$angle = -90;
					break;
				case 8:
					$angle = 90;
					break;
				default:
					$angle = 0;
					break;
			}
			return $angle;
		}
		return $angle;
	}