Namesort descending Description
Field CRUD API Create, update, and delete Field API fields, bundles, and instances.
Field Formatter API Define Field API formatter types.
Field Info API Obtain information about Field API configuration.
Field Language API Handling of multilingual fields.
Field Storage API Implement a storage engine for Field API data.
Field Types API Define field types.
Field Widget API Define Field API widget types.
File interface Common file handling functions.
Form builder functions Functions that build an abstract representation of a HTML form.
Form generation Functions to enable the processing and display of HTML forms.
Formatting Functions to format numbers, strings, dates, etc.
Hook implementations for user-created content types Functions that implement hooks for user-created content types.
Hooks Allow modules to interact with the Backdrop core.
HTTP handling Functions to properly handle HTTP responses.
Image toolkits Functions for image file manipulations.
Input validation Functions to validate user input.
Installer module: file management Installer module file management functions.
Installer module: install Installer module functionality for installing new code.
Installer module: update Installer module functionality for updating existing code.
Language Negotiation API functionality Functions to customize the language types and the negotiation process.
Language negotiation options Functions for language negotiation.
Locking mechanisms Functions to coordinate long-running operations across requests.
Logging severity levels Logging severity levels as defined in RFC 3164.
Menu context types Flags for use in the "context" attribute of menu router items.
Menu flags Flags for use in the "type" attribute of menu items.
Menu item types Definitions for various menu item types.
Menu status codes Status codes for menu callbacks.
Menu system Define the navigation menus, and route page requests to code based on URLs.
Menu tree parameters Parameters for a menu tree.
Node access rights The node access system determines who can do what to which nodes.
Node API Hooks Functions to define and modify content types.
Objects that represent a View or part of a view These objects are the core of Views do the bulk of the direction and storing of data. All database activity is in these objects.
Pager pieces Theme functions for customizing pager elements.
PHP wrapper functions Functions that are wrappers or custom implementations of PHP functions.
Private update status cache system Functions to manage the update status cache.
Queue operations Queue items to allow later processing.
Redirect API Hooks Redirects may be created by end-users to manually redirect from one URL on the site to another one (or to an external URL). For example the path "about" may be redirected to "pages/about-us" after a site redesign. The old URLs…
Redirection API Functions related to URL redirects.
Sanitization functions Functions to sanitize values.
Schema API API to handle database schemas.
Search interface The Backdrop search interface manages a global search mechanism.
Standard filters Filters implemented by the Filter module.
Taxonomy indexing Functions to maintain taxonomy indexing.
Temporary key-value store functions Functions to temporarily store arrays or objects.
The life of a view This page explains the basic cycle of a view and what processes happen.
Translation import/export API. Functions to import and export translations.
Update versions of API functions Functions that are similar to normal API functions, but do not invoke hooks.
Updates from 7.x to 1.x Update functions from Drupal 7.x to Backdrop CMS 1.x.
Views access plugins @todo.
Views area handlers Handlers to tell Views what can display in header, footer and empty text in a view.

Pages