Global Access of variable in Laravel Views

To make the variable accessible globally, such as in a header across your application, you can use the View::share method in your AppServiceProvider. 

Step 1:  open App\Providers\AppServiceProvider and use boot() method as below

public function boot()
    {
        Paginator::useBootstrap();
        // Share the `today_count` variable globally across all views
        \Illuminate\Support\Facades\View::composer('*', function ($view) {   \\or use \Illuminate\Support\Facades and then View::component(*)
            $todo_list = \App\Models\Todo::query();
            $today_count = $todo_list->count();
            $view->with('today_count', $today_count);             // Share the `today_count` with all views
        });
    }

Step 2: Access variable in Your Views

<div>
    Today's Todo Count: {{ $today_count }}
</div>

Important Notes:
The View::composer('*', ...) method shares the variable across all views. If you only want it in specific views, you can replace '*' with specific view names.

View::composer(['header', 'dashboard', 'partials.sidebar']