string getClientOriginalExtension() Returns the original file extension. It is extracted
interface ExtensionGuesserInterface Guesses the file extension corresponding to a given mime type
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
class UploadedFile extends File
class MimeTypeExtensionGuesser implements
string getErrorMessage() Returns an informative upload error message.
string guess(string $path) Tries to guess the mime type of the given file. The file is
int getError() Returns the upload error. If the upload was successful, the constant UPLOADERROK
class MimeTypeGuesser implements
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