TMDB get director

$urlcrew = "http://api.themoviedb.org/3/movie/$id/credits?api_key=###6&language=it";
$resultcrew = file_get_contents($urlcrew);
$responsecrew = json_decode($resultcrew);
$crew = $responsecrew->crew;
$conto = count($crew);

foreach($crew as $dati)
{
	 switch($dati){
        case  $dati->job == "Director":
			$regista = $dati->name;
			echo $regista;
		break;
		case $dati->job == "Director of Photography":
			$fotografia = $dati->name;
			echo $fotografia;
		break;
    }

}