php中使用sftp教程

config = $config; 	
	}
	
	// ftp 连接 
	public function connect(){
		return $this->conn = ftp_connect($this->config['host'],$this->config['port'])); 
	}
	
	
	// 传输数据 传输层协议,获得数据 true or false 
  public function download($remote, $local,$mode = 'auto'){
	  return $result = @ftp_get($this->conn, $localpath, $remotepath, $mode);
  }
  
  // 传输数据 传输层协议,上传数据 true or false 
  public function upload($remote, $local,$mode = 'auto'){
	  return $result = @ftp_put($this->conn, $localpath, $remotepath, $mode);
  }
  
  
 	 // 删除文件 
	public function remove($remote){
	 return $result = @ftp_delete($this->conn_id, $file);
	}
  
	
}		



// 使用 
$config = array(
			'hostname' => 'localhost',
      'username' => 'root',
      'password' => 'root',
      'port' => 21

) ;
 
$ftp = new Ftp();
$ftp->connect($config);
$ftp->upload('ftp_err.log','ftp_upload.log');
$ftp->download('ftp_upload.log','ftp_download.log');





class sftp{
	
	
	// 初始配置为NULL
	private $config =NULL ;
	// 连接为NULL 
	private $conn = NULL;

	
	// 是否使用秘钥登陆 
	 private $use_pubkey_file= false;
	
	// 初始化
	public function init($config){
		$this->config = $config ; 
	}
	
	
	// 连接ssh ,连接有两种方式(1) 使用密码
	// (2) 使用秘钥 
	public function connect(){
		
		$methods['hostkey'] = $use_pubkey_file ? 'ssh-rsa' : [] ; 
		$con = ssh2_connect($this->config['host'], $this->config['port'], $methods);
		//(1) 使用秘钥的时候 
		if($use_pubkey_file){
		// 用户认证协议
			 $rc = ssh2_auth_pubkey_file(
				$conn,
				$this->config['user'],
				$this->config['pubkey_file'],
				$this->config['privkey_file'],
				$this->config['passphrase']) 
			);
		//(2) 使用登陆用户名字和登陆密码
		}else{
			$rc = ssh2_auth_password( $conn, $this->conf_['user'],$this->conf_['passwd']);
      
		}
		
		return $rc ; 
	}
	
	
	// 传输数据 传输层协议,获得数据
	  public function download($remote, $local){
		  
		  return ssh2_scp_recv($this->conn_, $remote, $local);
	  }
	  
	 //传输数据 传输层协议,写入ftp服务器数据
	 public function upload($remote, $local,$file_mode=0664){
		  return ssh2_scp_send($this->conn_, $local, $remote, $file_mode);
		  
	 }
	 
	 // 删除文件 
	  public function remove($remote){
			$sftp = ssh2_sftp($this->conn_);
			$rc  = false;

    if (is_dir("ssh2.sftp://{$sftp}/{$remote}")) {
			$rc = false ;
			
			// ssh 删除文件夹
      $rc = ssh2_sftp_rmdir($sftp, $remote);
			} else {
		  // 删除文件
				$rc = ssh2_sftp_unlink($sftp, $remote);
			}
			return $rc;
			
		}
		 
 
 
	
}


$config = [
  "host"     => "192.168.1.1 ",   // ftp地址
  "user"     => "***", 
  "port"     => "22",
  "pubkey_path" => "/root/.ssh/id_rsa.pub",  // 公钥的存储地址
  "privkey_path" => "/root/.ssh/id_rsa",     // 私钥的存储地址
];

$handle = new SftpAccess();
$handle->init($config);
$rc = $handle->connect();
$handle->getData(remote, $local);