PHP函数的FTP函数

$ftp_server = "ftp.example.com";$ftp_port = 21;$conn_id = ftp_connect($ftp_server, $ftp_port);

$ftp_user_name = "my_username";$ftp_user_pass = "my_password";if (ftp_login($conn_id, $ftp_user_name, $ftp_user_pass)) {    echo "FTP登录成功！";} else {    echo "FTP登录失败！";}

ftp_quit($conn_id);

$local_file = "local_file_path";$server_file = "server_file_path";if (ftp_put($conn_id, $server_file, $local_file, FTP_ASCII)) {    echo "上传文件成功！";} else {    echo "上传文件失败！";}

$local_file = "local_file_path";$server_file = "server_file_path";if (ftp_get($conn_id, $local_file, $server_file, FTP_BINARY)) {    echo "下载文件成功！";} else {    echo "下载文件失败！";}

$server_file = "server_file_path";if (ftp_delete($conn_id, $server_file)) {    echo "删除文件成功！";} else {    echo "删除文件失败！";}

$old_file = "old_file_path";$new_file = "new_file_path";if (ftp_rename($conn_id, $old_file, $new_file)) {    echo "重命名文件成功！";} else {    echo "重命名文件失败！";}

$server_dir = "server_directory_path";if (ftp_mkdir($conn_id, $server_dir)) {    echo "创建目录成功！";} else {    echo "创建目录失败！";}

if ($result === false) {    echo "FTP操作失败，错误代码：" . ftp_errno($conn_id) . ", 错误信息：" . ftp_error($conn_id);}