Attention

TYPO3 v9 has reached its end-of-life September 30th, 2021 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.

Extension Development

INTRODUCTION

• Introduction
• Extension Management
• System and Local Extensions

RESERVED FILES & HOW THEY DEFINE FUNCTIONALITY

• Files and Locations
• composer.json
• Declaration File (ext_emconf.php)
• Configuration Files (ext_tables.php & ext_localconf.php)
• Naming Conventions
• Extension Configuration (ext_conf_template.txt)
• Extending the TCA Array

STEPS TOWARDS CREATING AN EXTENSION

• Choosing an extension key
• Creating a new Extension
• Creating a new Distribution
• Adding Documentation
• Publish Your Extension
• Other resources