public function getConnectionInfo($d)
    {
        return sprintf(self::URL_CONNECTION_INFO, $d->server, $d->key, $d->ts);
    }
public function getConnectionInfo($d)
    {
        return sprintf(self::URL_CONNECTION_INFO, $d->server, $d->key, $d->ts);
    }
public function getConnectionInfo ( $ d ) { return sprintf ( self :: URL_CONNECTION_INFO , $ d -> server , $ d -> key , $ d -> ts ) ; }
Return connection info for long polling.

@param $d

@return string
Return connection info for long polling .