上传
$this->load->library(‘ftp‘);

$config[‘hostname‘] = ‘ftp.example.com‘;
$config[‘username‘] = ‘your-username‘;
$config[‘password‘] = ‘your-password‘;
$config[‘debug‘]    = TRUE;

$this->ftp->connect($config);
//路径要绝对路径
$this->ftp->upload(‘/local/path/to/myfile.html‘, ‘/public_html/myfile.html‘, ‘ascii‘, 0775);

$this->ftp->close();

下载文件列表
$this->load->library(‘ftp‘);

$config[‘hostname‘] = ‘ftp.example.com‘;
$config[‘username‘] = ‘your-username‘;
$config[‘password‘] = ‘your-password‘;
$config[‘debug‘]    = TRUE;

$this->ftp->connect($config);

$list = $this->ftp->list_files(‘/public_html/‘);

print_r($list);

$this->ftp->close();