php - assigning and accessing variable in blade file in Laravel 4 -

ok, understand far laravel (4.2) have file app/routes.php has route declared follows:

route::get('/hello/{name}', 'pagecontroller@getpage'); 

which in turn evaluated other declarations 1 matching given url. , there, in illuminate\routing\controller have function:

/**  * execute action on controller.  *  * @param  string  $method  * @param  array   $parameters  * @return \symfony\component\httpfoundation\response  */ public function callaction($method, $parameters) {     //currently $parameters array('name'=>'john') example..     //i going manually add one!     $parameters['extra_value']='mx';      $this->setuplayout(); //blank function in laravel 4.2      $response = call_user_func_array(array($this, $method), $parameters);     .. etc .. 

my question is, how access variable $name inside blade file? same $extra_value? , extra_value "same" name value passed url?