AddController.php

<?php
namespace MarketPlace\Attributes\Controller;

use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;

class AddController extends AbstractActionController
{
    public function addAction()
    {
        $sl = $this->getServiceLocator();
        $form = $sl->get('FormElementManager')->get('\MarketPlace\Attributes\Form\AttributesForm');
        return array('form' => $form);
    }

}