$id	=	"2"
$material	=	"67"
$materiais	=	array()
$w	=	array(
	"Produto.categoria_id" => "2",
	"material_id" => "67",
	"ativo" => "Sim"
)

            $w["material_id"] = $material;
            $w["ativo"] = "Sim";
            $nome = $materiais[$material];

ProdutosController::categoria() - APP/controllers/produtos_controller.php, line 52
Object::dispatchMethod() - CORE/cake/libs/object.php, line 118
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 256
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 230
[main] - APP/webroot/index.php, line 82