Attention

TYPO3 v8 has reached its end-of-life March 31st, 2020 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

There is no further ELTS support. It is recommended that you upgrade your project and use a supported version of TYPO3.

Core Architecture

• Backend
  • Initialization
  • Routing
• Extensions
• Configuration
  • The LocalConfiguration.php file
  • The AdditionalConfiguration.php file
  • Default configuration
  • Install Tool
  • Browsing the global configuration
  • User and Page TSconfig
• Access Control
  • Users and groups
  • Roles
  • Access Control options
  • Other options
  • More about File Mounts
  • Backend users module
  • Authentication
• Backend Modules
  • Backend interface
  • The backend template view
  • Backend Module API
  • Function Menu modules
  • TYPO3 CMS shell scripts (CLI mode)
• Database
  • Introduction
  • Database Structure
  • Upgrade table/field definitions
• Versioning and Workspaces
• Internationalization and localization
• Context Sensitive Help (CSH)
  • The $TCA_DESCR array
  • The language files for CSH
  • Implementing CSH
• Security in TYPO3