Provides helpers to operate on files and stream wrappers. Hierarchy class \Drupal\Core\File\

file_validate(FileInterface $file, $validators = array()) Checks that a file meets the criteria specified by

Defines the file entity class. Plugin annotation @ContentEntityType(

public FileSystem::basename($uri, $suffix = NULL) Gets

Defines the file schema handler. Hierarchy class \Drupal\Core\Entity\Sql\

public FileUsageInterface::delete(FileInterface

public File::setPermanent() Sets the file

public FileInterface::getCreatedTime() Returns

hook_file_copy(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) Respond to a file that has

file_field_find_file_reference_column(FieldDefinitionInterface $field) Determine whether a field references