钉钉上传文件设置权限,ubuntu设置文件所有权限

$upload_dir = dirname(dirname(__FILE__)) . DIRECTORY_SEPARATOR . "uploads" . DIRECTORY_SEPARATOR; if (!is_dir($upload_dir)) { if (!mkdir($upload_dir, 0777)) { return $response->withJson(array('message' => '创建上传目录失败，请重试'), 400); } }