Module Development

Implement hook_help() for Drupal 8, 9, and 10

To use a hook in a Drupal module, we need to add a function with a specific naming convention to your module's MODULE_NAME.module file. Each hook has unique arguments and an expected return value. In this tutorial, we'll walk through the process of implementing a hook by adding end-user help text for the anytown module, which Drupal's administrative UI will display. The process we'll use here applies to any hook implementation.

In this tutorial, we'll:

  • Locate the documentation for hook_help().
  • Implement the hook in the anytown module.
  • Verify our hook implementation.

By the end, you'll have implemented hook_help() to display help text in the Drupal UI.

Drupal Module Developer Guide