Update user role WP

### Example Code
Add the following code to your WordPress theme's `functions.php` file or a custom plugin:

function update_user_role_after_registration($user_id) {
    // Check if the user exists
    $user = get_userdata($user_id);

    if ($user) {
        // Set the desired role, e.g., 'editor', 'author', 'custom_role'
        $desired_role = 'editor';

        // Update the user role
        $user->set_role($desired_role);
    }
}
add_action('user_register', 'update_user_role_after_registration');

### Explanation
1. **Hook into `user_register`:** This action provides the newly registered user's ID.
2. **Fetch the user:** Use `get_userdata()` to retrieve the user object.
3. **Set the new role:** Use the `set_role()` method to assign the desired role to the user.

### Notes
– Replace `'editor'` with the role you want to assign. You can also create custom roles if needed.
– Make sure the role you assign exists. Use `add_role()` to define custom roles if they are not standard WordPress roles.

### Debugging and Testing
– Test the registration process to ensure the role is updated as expected.
– If you're using a custom registration form, ensure that the `user_register` hook is still triggered.

—

### 1. **Verify the `user_register` Hook is Triggered**
Ensure the `user_register` action is being triggered after registration. Add the following code temporarily to log the process:

function test_user_register_hook($user_id) {
    error_log("user_register hook triggered for user ID: " . $user_id);
}
add_action('user_register', 'test_user_register_hook');

Check the `debug.log` file (located in `wp-content/`) to see if the hook is firing. If not, the issue may lie in your registration process.

—

### 2. **Modify the Hook with Priority**
If you're using a custom registration plugin or process, the user role might be overwritten after your code runs. Set a higher priority to ensure your function executes later:

add_action('user_register', 'update_user_role_after_registration', 20);

—

### 3. **Direct Database Role Update**
Sometimes, WordPress processes might interfere. Use `wp_update_user()` instead:

function update_user_role_after_registration($user_id) {
    // Update user role directly
    wp_update_user([
        'ID' => $user_id,
        'role' => 'editor', // Change 'editor' to your desired role
    ]);
}
add_action('user_register', 'update_user_role_after_registration');

—

### 4. **Check Default Role Settings**
Ensure no default roles are conflicting. Go to:
– **Settings** → **General** → **New User Default Role**
– Ensure it's set to the appropriate value or leave it as "Subscriber."

—

### 5. **Custom Registration Plugins**
If you're using plugins like UsersWP, WooCommerce, or Ultimate Member, they might override default behaviors. For example:
– Check the plugin's settings for role assignment options.
– Use a plugin-specific hook (e.g., `um_registration_complete` for Ultimate Member).

Example for UsersWP:

function userswp_custom_role_update($user_id) {
    $user = new WP_User($user_id);
    $user->set_role('editor'); // Replace 'editor' with the desired role
}
add_action('uwp_after_register', 'userswp_custom_role_update');

—

### 6. **Test with Minimal Plugins and Themes**
Switch to a default WordPress theme (e.g., Twenty Twenty-Four) and disable unnecessary plugins to ensure no interference.

—

### 7. **Final Solution: Debug with Hook Priority**
If the role change still doesn’t stick, ensure your function runs last:

add_action('user_register', 'update_user_role_after_registration', PHP_INT_MAX);

This guarantees it runs after all other processes. Let me know your setup, especially if you're using a custom registration method, so I can provide a more tailored solution.