Net_SSH2::_close_channel PHP Method

    function _close_channel($client_channel, $want_reply = false)
    {
        // see http://tools.ietf.org/html/rfc4254#section-5.3
        $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_EOF, $this->server_channels[$client_channel]));
        if (!$want_reply) {
            $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$client_channel]));
        }
        $this->channel_status[$client_channel] = NET_SSH2_MSG_CHANNEL_CLOSE;
        $this->curTimeout = 0;
        while (!is_bool($this->_get_channel_packet($client_channel))) {
        }
        if ($want_reply) {
            $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$client_channel]));
        }
        if ($this->bitmap & NET_SSH2_MASK_SHELL) {
            $this->bitmap &= ~NET_SSH2_MASK_SHELL;
        }
    }

 public function closeChannel()
 {
     $this->ssh->_close_channel(NET_SSH2_CHANNEL_EXEC);
 }