string getClientOriginalExtension() Returns the original file extension. It is extracted

interface ExtensionGuesserInterface Guesses the file extension corresponding to a given mime type

class MimeTypeExtensionGuesser implements

class UploadedFile extends File

string guess(string $path) Guesses the mime type of the file with the given path.

string|null getClientOriginalName() Returns the original file name. It is extracted from

string getErrorMessage() Returns an informative upload error message.

bool isValid() Returns whether the file was uploaded successfully.

int getError() Returns the upload error. If the upload was successful, the constant UPLOADERROK

File move(string $directory, string $name