public FileInterface::isTemporary() Returns

template_preprocess_file_upload_help(&$variables) Prepares variables for file upload help text templates

public FileSystemInterface::uriScheme($uri)

Defines a MIME type guesser that also supports stream wrapper paths. Hierarchy class

The stream wrapper manager. Type:

file_validate_size(FileInterface $file, $file_limit = 0, $user_limit = 0) Checks that the file's size is below

public DatabaseFileUsageBackend::add(FileInterface

public File::setFilename($filename) Sets

_views_file_status($choice = NULL) Formats human-readable version of file status.

public File::getFileUri() Returns the URI