New to Server in PHP

[thenewa2x]

I am attempting to create an abstract PHP class that will allow some developer to create their own custom server using PHP. I am able to start the server, bind the socket, and start listening. The only issue I have is how to handle multiple connections for reading and writing. From what I understand there are multiple ways of doing this so please point me in the right direction if my approach is wrong.

        protected function _listen ( )
        {
            // Make arrays.
            $read   = array( $this->_daemon );
            $write  = array( );
            $except = array( );

            // Get connection sockets.
            if ( ( $ret = @socket_select( $read,
                                          $write,
                                          $except,
                                          0 ) ) === false )
            {
                // Log warning.
                $this->_log( "Unable to select sockets",
                             self::WARNING,
                             $this->_daemon );
            }

            // No sockets?
            if ( $ret === 0 )
            {
                // Skip cycle.
                return;
            }

            // Check for connecting clients.
            if ( in_array( $this->_daemon, $read ) )
            {
                // Acquire client socket.
                $this->_clients []= socket_accept( $this->_daemon );

                // Get client index.
                $index = array_pop( array_keys( $this->_clients ) );

                // Get peer information.
                socket_getpeername( $this->_clients[ $index ],
                                    $peer_addr,
                                    $peer_port );

                // Very verbose?
                if ( $this->verbose >= self::HIGH )
                {
                    // Log connection.
                    $this->_log( "Client connected on {$peer_addr} " .
                                 "port {$peer_port}.",
                                 self::NOTICE );
                }

                // Find daemon in read.
                $dindex = array_search( $this->_daemon, $read );

                // Remove daemon from read.
                unset( $read[ $dindex ] );

                // Loop through each client.
                foreach ( $read as $socket )
                {
                    // Get message.
                    $msg = "Connection: Keep-Alive";

                    socket_write( $this->_clients[ $index ],
                                  $msg,
                                  strlen( $msg ) );

                    $msg = "This is a test.\n";

                    socket_write( $this->_clients[ $index ],
                                  $msg,
                                  strlen( $msg ) );
                }
            }
        }

With the code above, I read up on someone's else handling of connections and began my attempt. After the above attempt I got lost.

Please let me know if the above source is not enough to provide help.

Thanks