PHP Networking Sockets

Question

Would it be possible to copy this C# program in PHP?

        var chatsrv = new IPEndPoint(IPAddress.Parse(_charUrl), _chatPort);
        _chatsocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        _chatsocket.Connect(chatsrv);
        var ns = new NetworkStream(_chatsocket);
        _nw = new BinaryWriter(new BufferedStream(ns));
        var nr = new BinaryReader(ns);

        _nw.Write((byte)(0xff));
        _nw.Write(acc.AccountId);
        _nw.WriteUtf8String(acc.AuthCookie);
        _nw.Write((UInt32)2);
        _nw.Flush();

        var response = nr.ReadBytes(nr.ReadInt32());