Mine

class EppConnector{

        var $eppsocket = null;

        public function writeEppString ($message)
        {
                $written = fwrite ($this->eppsocket,pack('N', strlen($message)+4) .$message);
        }

        public function readEppString()
        {
                if ($this->isconnected()){
                        $hdr = unpack('Nlen', fread($this->eppsocket, 4) );
                        $len = $hdr['len'];
                $recvd_data = '';
                        $left=$len-4;
                        while ( !feof($this->eppsocket) ) {
                                $chunk = fread($this->eppsocket, $left);
                                $recvd_data .= $chunk; 
                                $left = $left - strlen($chunk);
                                if ($left == 0)
                                        break;
                        }   

                        return $recvd_data;
                }
                return "";
        }
<zap>


class EPP_Message {

        private $message = nothing;
        private $messagetype = nothing;

        function EPP_Message($xml) {

                $messagetypes = array("hello", "command");

                if (in_array($xml, $messagetypes)) {
                        $this->message = new xml_doc();
                $this->messagetype = $xml;
                } else {
                        $this->message = new xml_doc($xml);
                        $this->message->parse();
                }


<zap>