Pchp.Library.PhpPath.realpath C# (CSharp) Method

        public static string realpath(string path)
        {
            if (string.IsNullOrEmpty(path))
                return null;

            // string ending slash
            if (path[path.Length - 1].IsDirectorySeparator())
                path = path.Substring(0, path.Length - 1);

            string realpath = AbsolutePath(path);
            throw new NotImplementedException();
            //if (!File.Exists(realpath) && !System.IO.Directory.Exists(realpath))
            //{
            //    return null;
            //}

            //return realpath;
        }