Still on Drupal 7? Security support for Drupal 7 ended on 5 January 2025. Please visit our Drupal 7 End of Life resources page to review all of your options.File API overview
The Drupal 7 File API provides an abstraction layer for accessing virtually any type of resource as a normal file.
File usage functions
One of the things to think about when using the Drupal 7 File API is the new file_usage_* functions. These provide a way for modules to
General concepts
The Drupal File API leverages PHP stream wrappers allowing virtually any type of resource to be represented as a normal file. This is a
Important Drupal 7 File API Functions
All the File API functions are at http://api.drupal.org/api/drupal/includes--file.inc/7, but it can be hard to sort out which ones you
Writing stream wrappers
This document will first discuss the implementation of a simple local stream wrapper, similar to the public wrapper included with Drupal
File API changes from Drupal 6 to Drupal 7
There are three key and pervasive things that happened to the File API between Drupal 6 and Drupal 7:
