PHP文件上传异常值

switch ($_FILES['Filedata']['error']) {    case 0:        $msg = "No Error";         break;    case 1:        $msg = "The file is bigger than this PHP installation allows";        break;    case 2:        $msg = "The file is bigger than this form allows";        break;    case 3:        $msg = "Only part of the file was uploaded";        break;    case 4:        $msg = "No file was uploaded";        break;    case 6:        $msg = "Missing a temporary folder";        break;    case 7:        $msg = "Failed to write file to disk";        break;    case 8:        $msg = "File upload stopped by extension";        break;    default:        $msg = "unknown error ".$_FILES['Filedata']['error'];        break;}echo ($msg) ? "Error: ".$_FILES['Filedata']['error']." Error Info: ".$msg ： "1";// 1  This is required for onComplete to fire on Mac OSX