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PHP FTP操作類封裝：連接、目錄遍歷、文件下載刪除一站式實現

編輯：PHP 相關知識

類結構設計


class MyFTP {
  private $conn;
  private $loginResult;

  public function connect($host, $user, $pass) {
    $this->conn = @ftp_connect($host);
    $this->loginResult = @ftp_login($this->conn, $user, $pass);
    if (!$this->conn || !$this->loginResult) {
      die("FTP連接失敗: $host @ $user");
    }
    echo "Connected to $host for user $user\n";
  }

  public function lastModTime($file) {
    return ftp_mdtm($this->conn, $file);
  }

  public function changeDir($dir) {
    return ftp_chdir($this->conn, $dir);
  }

  public function getDir() {
    return ftp_pwd($this->conn);
  }

  public function getFileList($dir) {
    return ftp_nlist($this->conn, $dir);
  }

  public function getFile($remoteFile, $mode = FTP_BINARY, $deleteAfter = false) {
    $localFile = basename($remoteFile);
    if (@ftp_chdir($this->conn, $remoteFile)) { // 是目錄
      ftp_cdup($this->conn);
      echo "[DIR] $remoteFile\n";
      return false;
    }
    $result = ftp_get($this->conn, $localFile, $remoteFile, $mode);
    if ($deleteAfter) {
      if (ftp_delete($this->conn, $remoteFile)) {
        echo "Deleted remote $remoteFile\n";
      }
    }
    return $result;
  }

  public function close() {
    ftp_close($this->conn);
  }
}

使用示例


$ftp = new MyFTP();
$ftp->connect('ftp.example.com', 'user', 'pass');
$files = $ftp->getFileList('/public/data');
foreach ($files as $file) {
  $ftp->getFile($file, FTP_BINARY, true); // 下載並刪除遠程
}
$ftp->close();