Drupal-8-user-register-hook -

Use this to add custom fields or validation logic (e.g., matching a secondary database). 💻 Code Example: hook_user_presave

The most effective way to intercept or modify user data during registration is through the following hooks: Usage Note Runs before the user is saved.

Use this for actions that require the new User ID, like sending a custom welcome email or creating related profile entries. Modifies the registration form . drupal-8-user-register-hook

use Drupal\user\UserInterface; /** * Implements hook_ENTITY_TYPE_presave() for user entities. */ function my_module_user_presave(UserInterface $user) { // Check if this is a new user registration if ($user->isNew()) { // Perform custom logic, e.g., set a field value $user->set('field_welcome_status', 'Pending'); } } Use code with caution. Copied to clipboard 🎯 Key Considerations

Do you need help on the registration form, or are you looking to redirect users after they sign up? Use this to add custom fields or validation logic (e

This is the standard approach to identify a vs. an existing user being updated.

Inside presave , always call $user->isNew() to ensure your code only runs during initial registration rather than every time a profile is updated. Modifies the registration form

Best for modifying data (e.g., adding a default role) before it hits the database. Runs after the user is created.