是否可以重複使用連接字符串與Phpseclib？

Question

假設我在類文件中有以下兩種方法。在我的代碼中，我通過執行以下操作來啓動連接。

$host = new Host($ip, $targ, $this->log, $pwd); 

然後在我的代碼中，我調用scp方法。

$host->scp("$dir.tar.gz", "{$targ['deploy_to']}/releases/$dir.tar.gz"); 

它的工作原理是，但我不希望有我的連接字符串傳遞到scp方法一旦它發起的，當我第一次連接。

class Host { 
    private $conn = NULL; 

    function __construct($host, $target, $log, $pwd=NULL) { 
     $this->log = $log; 
     $this->loud = $target['verbose']; 
     $this->quiet = $target['quiet']; 
     $this->user = $target['user']; 
     $this->rsa_key = $target['private_key_file']; 
     $this->conn = $this->connect($host, $target, $pwd); 
    } 


    private function connect($host, $target, $pwd = NULL) { 
     $key = new Crypt_RSA(); 
     $key->loadKey(file_get_contents($target['private_key_file'])); 
     $this->log->verbose("Connecting to $host on port {$target['ssh_port']}"); 
     $conn = new Net_SSH2('10.199.1.70'); 
     $this->log->verbose("Authenticating as {$target['deploy_user']} using {$target['public_key_file']}"); 

     if (!$conn->login($target['deploy_user'], $key)) { 
      $this->log->error("Unable to authenticate"); 
     } 

     $this->log->ssh[$host] = $this; 
     return $conn; 
    } 

    function scp($local_file, $remote_file, $mode = 0644) { 
     $sftp = new Net_SFTP('10.199.1.70'); 
     $key = new Crypt_RSA(); 

     $key->loadKey(file_get_contents($this->rsa_key)); 
     if (!$sftp->login($this->user, $key)) { 
      exit('Login Failed'); 
     } 

     $this->log->verbose("scp'ing $local_file to $remote_file mode ".decoct($mode)); 
     $ret = $sftp->put($remote_file, $local_file,NET_SFTP_LOCAL_FILE); 
     return $ret; 
    } 
} 

Answer 1

是否有一個原因，這並不工作？：

$ret = $this->conn->put($remote_file, $local_file,NET_SFTP_LOCAL_FILE);