Laravel - Dynamically Building Routes From Model

I'm trying to build routes from a model below is the code.

$data = \App\Models\ModelName::all();

    if(!empty($data) && $data->count() >= 1)
    {
        foreach($data as $d)
        {
            Route::prefix('/'.$d['data_field'])->name($d['data_field'])->group(function(){
                Route::get('/', ucfirst($d['data_field']).'Controller@index');                  
            });
        }
    }

I kept getting the error message that $d is not defined. Is there a way to build the routes dynamically?

via Chebli Mohamed