before_action Hook

before_action() → void

The before_action hook is automatically executed before any controller action method. It provides a central place to run logic that should occur prior to each controller method, such as:

• Authentication checks

• Authorization validation

• Input preprocessing

• Logging or debugging initialization

By default, this hook is empty. Extend or override it in your controller classes to implement custom pre-action behavior.

Return void:

This hook does not return a value.

Example

Override the hook in a controller to perform authentication:

class PostController extends BaseController
{
    public function before_action()
    {
        // Ensure user is logged in before any action
        if (!$this->auth->check()) {
            redirect('login');
        }
    }

    public function index()
    {
        // Runs only after before_action hook passes
        $posts = $this->postModel->all();
        $this->load->view('posts/index', ['posts' => $posts]);
    }
}