hook_filetransfer_info() Register information about FileTransfer classes provided by a module.

public FileSystemInterface::rmdir($uri, $context = NULL)

File storage for files. Hierarchy class \Drupal\Core\Entity\

protected static ManagedFile::fileUsage()

Provides an AJAX/progress aware widget for uploading and saving a file. Plugin annotation

The database connection used to store file usage information. Type:

public FileInterface::getMimeType() Returns

public FileSystem::tempnam($directory, $prefix) Creates

The stream wrapper manager. Type:

Default theme implementation to display a file form widget. Available variables: element: