File api

• manage files

API

Use case, create fields and attach to the image field of a node
http://drupal.org/node/889058#comment-3663854

Attaching files to nodes programmatically in drupal 7 http://stackoverflow.com/questions/5129559/attaching-files-to-nodes-programmatically-in-drupal-7

• file_save()
  Save a file to the database
  http://api.drupal.org/api/drupal/includes!file.inc/function/file_save/7

• file_load
  Load a file
  http://api.drupal.org/api/drupal/includes!file.inc/function/file_load/7

• file_save_data
  save a file to the database (easier that whith file_save)
  http://api.drupal.org/api/drupal/includes!file.inc/function/file_save_data/7