I got a problem while using fieldset and collection, i created a view wich has 3 fieldsets and inside the fieldsets i have 1 file input for each, the problem is when i create the object Http() (Zend\File\Transfer\Adapter\Http), the constructor get $_FILES and pass it to an array of files inside the object, but when it does the array format the a…

adicionar.phtml

<div class="span12">
  <?php
	$title = 'Adicionar banner';
	$this->ztbForm($this->form);

	$form = $this->form;
	$form->setAttribute('action', $this->url('banner', array('action' => 'adicionar')));
	$form->setAttribute('class', 'form-horizontal');
	$form->setAttribute('class', 'pull-left');
	$form->setAttribute('class', 'span12');
	$form->prepare();	     

	echo $this->form()->openTag($form);

	// echo $this->formCollection($form->get('banners'));
	?>
	
	<div class="page-header">
		<h1><?php echo $this->escapeHtml($title); ?></h1>
	</div>

	<?php
		echo $this->ztbFormElement($form->get('banners')->get(0)->get('nom_banner'));
	?>

	<?php
		$idiomas_temp = array();
		if(count($idiomas)):
			echo '<ul class="nav nav-tabs">';
			foreach ($idiomas as $idioma) :
	?>
			<li <?php echo (count($idiomas_temp) == 0) ? "class='active'" : "" ?>>
				<a href="#idioma<?php echo $idioma->cod_idioma ?>"  data-toggle="tab">
					<img src="<?php echo $this->basePath().'/assets/idioma/original/'.$this->escapeHtml($idioma->url_imagem) ?>" >
					<?php echo $idioma->nom_idioma ?>
				</a>
			</li>	
	<?php
			$idiomas_temp[] = $idioma;

			endforeach;
			echo '</ul>';
		endif;
	?>

	<?php
		if(count($idiomas_temp)) :
	?>

	<div class="tab-content">
	<?php
		$cont = 0;
		foreach ($idiomas_temp as $idioma):
	?>
		<div  class="tab-pane <?php echo ($cont == 0) ? "active" : "" ?>" id="idioma<?php echo $idioma->cod_idioma ?>">
	<?php
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('cod_banner'));
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('cod_banner_pai'));
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('cod_idioma'));
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('des_banner'));
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('url_imagem'));
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('url_banner'));
			echo $this->ztbFormElement($form->get('banners')->get($cont)->get('ind_status'));
	?>	
		</div>
	<?php
			$cont++;
		endforeach;
	?>
	</div>
	<hr/>
	<?php
		echo $this->formElement($form->get('submit'));
		echo $this->form()->closeTag();
	?>

	<?php
		$controller = ucfirst($this -> parametros() -> getController(true));
		echo $this->headScript()->appendFile($this->basePath() . "/public_admin/js/validation/Admin/{$controller}Form.js");
		endif;
	?>
</div>
    

BannerController.php

<?php

/**
 * @author Gabriel P. Fiel <gpfiel@hotmail.com>
 * @package Banner
 */
namespace Admin\Controller;

use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
use Admin\Form\CriarBanner;
use Admin\Model\Banner;
use Admin\Form\BannerForm;
use Zend\Paginator\Paginator;
use Zend\Paginator\Adapter\Iterator as paginatorIterator;
use Zend\File\Transfer\Adapter\Http;
use Zend\Validator\File\Size;

class BannerController extends AbstractActionController
{

    protected $bannerTable;

    public function indexAction()
    {
        $page  = $this->params()->fromRoute('page') ? (int) $this->params()->fromRoute('page') : 1;
        $busca = $this->params()->fromPost('busca') ? $this->params()->fromPost('busca') : null;
        
        $itemsPerPage = 10;

        $banners  = $this         -> getBannerTable()->fetchAll(null, $busca);

        if(!$banners -> count() and $busca != null)
        {
            $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'erro', 'Não foi encontrado nenhum registro.');
            return $this -> redirect() -> toRoute("banner");
        }

        $paginator    = new Paginator(new paginatorIterator($banners));
        $paginator    -> setCurrentPageNumber($page)
                      -> setItemCountPerPage($itemsPerPage)
                      -> setPageRange(10);

        return new ViewModel(array(
            'flashMessages'   => $this->flashMessenger()->getMessages(),
            'page'            => $page,
            'paginator'       => $paginator,
        ));
    }

    public function adicionarAction()
    {
        $page         = $this->params()->fromRoute('page') ? (int) $this->params()->fromRoute('page') : 1;

        $form = new CriarBanner();

        $idiomas = $this -> pluginFuncoes() -> getIdiomas();

        $form->get('banners')->setCount($idiomas->count())->prepareFieldset();
        $form->get('banners')->get(0)->get('ind_status')->setAttribute("value","1");
        $form->get('submit')->setValue('Adicionar');

        $request = $this->getRequest();
        if ($request->isPost()) 
        {
            $data = $request->getPost()->toArray();

            $files =  $this->params()->fromFiles();

            $cont = 0;

            foreach ($files['banners'] as $file) {
                $data['banners'][$cont]['url_imagem'] = $file['url_imagem'];
                $cont++;
            }


            $form->setData($data);
            
            $form->setValidationGroup(array('banners' => array('url_imagem','nom_banner')));

            foreach ($data['banners'] as $chave => $h) 
            {
                if($h['ind_status'] == 2 and $chave > 0)
                {
                    $form->getInputFilter()->get('banners')->get($chave)->get('url_imagem')->setRequired(false);
                }

                if($chave > 0)
                {
                    $form->getInputFilter()->get('banners')->get($chave)->get('nom_banner')->setRequired(false);
                }
            }


            if ($form->isValid()) 
            {
                $codigos_dos_idiomas = array();
                foreach ($idiomas as $idioma) 
                {
                    $codigos_dos_idiomas[] = $idioma->cod_idioma;
                }

                self::uploadImageAndResize($files);

                foreach ($data['banners'] as $chave => $h) 
                {
                    if($chave != 0)
                    {
                        $h['cod_banner_pai'] = $cod_banner_pai;
                        $h['nom_banner']     = $nom_banner_pai;
                    }

                    $h['cod_idioma'] = $codigos_dos_idiomas[$chave];

                    $banner = new Banner();
                    $banner->exchangeArray($h);
                    if($chave == 0)
                    {
                        $cod_banner_pai = $this->getBannerTable()->cadastrarBanner($banner);
                        $nom_banner_pai = $banner ->nom_banner;
                    }
                    else
                    {
                        $this->getBannerTable()->cadastrarBanner($banner);
                    }
                }
                
                $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'ok');
                return $this->redirect()->toRoute('banner', array('page'          => $page));
            }
            else
            {
                $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'erro',"Necessário o preenchimento do banner em {$idiomas -> current() -> nom_idioma} e os idiomas que estão ativos.");
            }
        }
        

        $viewmodel = new ViewModel(array(
            'form'          => $form,
            'page'          => $page,
            'flashMessages' => $this->flashMessenger()->getCurrentMessages(),
            'idiomas'       => $idiomas
        ));
        return $viewmodel;
    }

    public function deletarAction()
    {
        $page         = $this->params()->fromRoute('page') ? (int) $this->params()->fromRoute('page') : 1;
        $cod_banner = $this->getEvent()
            ->getRouteMatch()
            ->getParam('cod_banner');

        

        $banner = $this->getBannerTable()->getBanner($cod_banner);
        
        $retorno = $this->getBannerTable()->deletarBanner($cod_banner, $this -> pluginFuncoes());

        if(!$retorno)
        {
            $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'ok');
        }
        else
        {
            $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'erro', $retorno);
        }

        return $this->redirect()->toRoute('banner', array('page' => $page));
    }

    public function editarAction()
    {
        $page         = $this->params()->fromRoute('page') ? (int) $this->params()->fromRoute('page') : 1;
        $cod_banner = ((int) $this->params('cod_banner') ? (int) $this->params('cod_banner') : (int) $this->params('cod_banner'));

        $banner = $this->getBannerTable()->getBanner($cod_banner);

        $form = new CriarBanner();

        $idiomas = $this -> pluginFuncoes() -> getIdiomas();

        if($banner -> count() != $idiomas -> count())
        {
            foreach ($banner as $ha) 
            {
                $idiomas_da_banner[] = $ha -> cod_idioma;
            }
            foreach ($idiomas as $idioma) 
            {
                $idiomas_existentes[] = $idioma -> cod_idioma;
            }

            $idiomas_novos = array_diff($idiomas_existentes, $idiomas_da_banner);

            foreach ($idiomas_novos as $in) 
            {
                $banner = new Banner();
                $banner -> cod_banner_pai = $cod_banner;
                $banner -> cod_idioma     = $in;
                $banner -> ind_status     = 2;
                $banner -> nom_banner     = "";
                $this->getBannerTable()->cadastrarBanner($banner);
            }
            
            $banner = $this->getBannerTable()->getBanner($cod_banner);
            $idiomas    = $this -> pluginFuncoes() -> getIdiomas();
        }


        $form->get('banners')->setCount($idiomas->count())->prepareFieldset();

        foreach ($banner as $ha) {
            $banners_lista[] = (array) $ha;
        }

        $banners_lista[] = array();

        $form->setData(array("banners" => $banners_lista));
        $form->get('submit')->setValue('Editar');
        
        $request = $this->getRequest();
        if ($request->isPost()) {
            $banner = new Banner();
            $form->setInputFilter($banner->getInputFilter());
            $data = $request->getPost()->toArray();

            $form->setValidationGroup(array('banners' => array('nom_banner')));
            $form->setData($data);

            foreach ($data['banners'] as $chave => $h) 
            {
                if($h['ind_status'] == 2 and $chave > 0)
                {
                    $form->getInputFilter()->get('banners')->get($chave)->get('nom_banner')->setRequired(false);
                }
            }

            if ($form->isValid()) 
            {
                foreach ($data['banners'] as $h) 
                {
                   $banner->exchangeArray($h);
                   $this->getBannerTable()->editarBanner($banner);
                }


                $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'ok');
                return $this->redirect()->toRoute('banner', array('page'          => $page));
            }
            else
            {
                $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'erro',"Necessário o preenchimento do banner em {$idiomas -> current() -> nom_idioma} e os idiomas ativos.");
            }
        }
        

        $viewmodel = new ViewModel(array(
            'form'          => $form,
            'page'          => $page,
            'flashMessages' => $this->flashMessenger()->getCurrentMessages(),
            'idiomas'       => $idiomas
        ));
        return $viewmodel;
    }

    public function uploadImageAndResize($files)
    {
        $adapter = new Http();

        $files = $adapter->getFileInfo();

        echo '<pre>';
        print_r($files);

        if (!$adapter->isUploaded($files['banners_0_'])) {
            print "Why havn't you uploaded the file ?";
        }
        exit;
        $adapter->setDestination($this -> pluginFuncoes() -> getBasePath() . '/assets');

        foreach ($files['banners'] as $file) 
        {
            $size = new Size(array(
                'min' => 100
            )); // minimum bytes filesize
            
            $adapter->setValidators(array(
                $size
            ), $file['url_imagem']['name']);
            
            if(!empty($file['url_imagem']['name']))
            {
                if($adapter->isValid())
                {
                    $novo_nome = date("d-m-Y_H-i-s").'.jpg';

                    $adapter->addFilter('File\Rename', array(
                        'target' => $adapter->getDestination() . "/banner/original/{$novo_nome}",
                        'overwrite' => true
                    ));

                    if ($adapter->receive($file['url_imagem']['name'])) 
                    {
                        $thumbnailer = $this->getServiceLocator()->get('WebinoImageThumb');
                        $thumb       = $thumbnailer->create($this -> pluginFuncoes() -> getBasePath() . "/assets/banner/original/{$novo_nome}", $options = array());

                        $thumb->resize(240, 240);
                        $thumb->save($this -> pluginFuncoes() -> getBasePath() . "/assets/banner/miniatura/{$novo_nome}");

                    }
                    else
                    {
                        $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'erro', "Erro ao enviar o arquivo {$file['url_imagem']['name']}.");
                    }
                }
                else
                {
                    $dataError = $adapter->getMessages();
                    
                    $error = array();
                    foreach ($dataError as $key => $row) {
                        $error .= '<br/>' . $row;
                    }

                    if($error)
                        $this -> pluginMensagem() -> adicionarMensagem($this->params('action'),'erro', $error);
                }
            }
        }
    }

    public function getBannerTable()
    {
        if (! $this->bannerTable) {
            $sm = $this->getServiceLocator();
            $this->bannerTable = $sm->get('Admin\Model\BannerTable');
        }
        return $this->bannerTable;
    }
}

BannerFieldset.php

<?php
namespace Admin\Form;

use Admin\Model\Banner;
use Zend\Form\Fieldset;
use Zend\InputFilter\InputFilterProviderInterface;
use Zend\Stdlib\Hydrator\ClassMethods as ClassMethodsHydrator;
use Zend\Validator\NotEmpty;
use Zend\Validator\StringLength;

class BannerFieldset extends Fieldset implements InputFilterProviderInterface
{
    public function __construct()
    {
        parent::__construct('banner-form');
        $this->setAttribute('method', 'post');
        $this->setAttribute('enctype','multipart/form-data');

        $this->setHydrator(new ClassMethodsHydrator(false))
             ->setObject(new Banner());

        $this->setLabel('Banner');

        $this->add(array(
            'name' => 'cod_banner',
            'attributes' => array(
                'type'  => 'hidden',
            ),
        ));
        
        $this->add(array(
            'name' => 'cod_banner_pai',
            'attributes' => array(
                'type'  => 'hidden',
            ),
        ));

        $this->add(array(
            'name' => 'cod_idioma',
            'attributes' => array(
                'type'  => 'hidden',
            ),
        ));
        

        $this->add(array(
            'name' => 'nom_banner',
            'attributes' => array(
                'type'  => 'text',
            ),
            'options' => array(
                'label' => 'Nome',
            ),
        ));

        $this->add(array(
            'name' => 'des_banner',
            'attributes' => array(
                'type'  => 'textarea',
                'class' => 'span6',
                'style' => 'height:200px; resize:none;'
            ),
            'options' => array(
                'label' => 'Descrição',
            ),
        ));

        $this->add(array(
            'name' => 'url_imagem',
            'attributes' => array(
                'id'   => 'url_imagem', 
                'type' => 'file',
            ),
            'options' => array(
                'label' => 'Imagem',
            ),
        ));

        $this->add(array(
                'name' => 'url_banner',
                'attributes' => array(
                        'type'  => 'text',
                ),
                'options' => array(
                        'label' => 'Link',
                ),
        ));
        
        $this->add(array(
                'type' => 'Zend\Form\Element\Select',
                'name' => 'ind_status',
                'options' => array(
                        'label' => 'Situação',
                        'value_options' => array(
                                '2' => 'Inativo',
                                '1' => 'Ativo'
                        ),
                ),
                'attributes' => array(
                        'value' => '2'
                )
        ));
    }

    public function getInputFilterSpecification()
    {
        return array(
            'nom_banner' => array(
                'required' => true,
                'validators' => array(
                    array(
                        'name' => 'StringLength',
                        'options' => array(
                            'encoding' => 'UTF-8',
                            'min' => 1,
                            'max' => 250,
                            'messages' => array(
                                StringLength::TOO_SHORT => 'Deve conter no mínimo um caracter.',
                                StringLength::TOO_LONG => 'Não pode exceder 250 caracteres.',
                            ),
                        )
                    ),
                    array(
                        'name' => 'NotEmpty',
                        'options' => array(
                            'messages' => array(
                                NotEmpty::IS_EMPTY => 'Preenchimento obrigatório.',
                            ),
                        ),
                    ),
                ),
                'filters' => array(
                    array(
                        'name' => 'StripTags'
                    ),
                    array(
                        'name' => 'StringTrim'
                    )
                ),
            ),
            'cod_banner' => array(
                'required' => false,
                'filters' => array(
                    array(
                        'name' => 'Int'
                    )
                )
            ),
            'cod_banner_pai' => array(
                'required' => false,
                'filters' => array(
                    array(
                        'name' => 'Int'
                    )
                )
            ),
            'cod_idioma' => array(
                'required' => false,
                'filters' => array(
                    array(
                        'name' => 'Int'
                    )
                )
            ),
            'des_banner' => array(
                'required' => false,
                'validators' => array(
                    array(
                        'name' => 'StringLength',
                        'options' => array(
                            'encoding' => 'UTF-8'
                        )
                    )
                ),
                'filters' => array(
                    array(
                        'name' => 'StripTags'
                    ),
                    array(
                        'name' => 'StringTrim'
                    )
                ),
            ),
            'ind_status' => array(
                'required' => false,
                'filters' => array(
                    array(
                        'name' => 'Int'
                    )
                )
            ),
            'url_imagem' => array(
                'required' => true,
                'validators' => array(
                    array(
                        'name' => 'NotEmpty',
                        'options' => array(
                            'messages' => array(
                                NotEmpty::IS_EMPTY => 'É obrigatório a seleção de uma imagem.',
                            ),
                        ),
                    ),
                ),
            ),
            'url_banner' => array(
                'required' => false,
                'validators' => array(
                    array(
                        'name' => 'StringLength',
                        'options' => array(
                            'encoding' => 'UTF-8',
                            'max' => 250,
                            'messages' => array(
                                StringLength::TOO_LONG => 'Não pode exceder 250 caracteres.',
                            ),
                        )
                    )
                ),
                'filters' => array(
                    array(
                        'name' => 'StripTags'
                    ),
                    array(
                        'name' => 'StringTrim'
                    )
                ),
            ),
            
        );
    }
}
?>

CriarBanner.php

<?php

namespace Admin\Form;

use Zend\Form\Form;
use Zend\InputFilter\InputFilter;
use Zend\Stdlib\Hydrator\ClassMethods as ClassMethodsHydrator;
use Zend\Validator\NotEmpty;
use Zend\Validator\StringLength;

class CriarBanner extends Form
{
    public function __construct()
    {
        parent::__construct('banner-form');
        $this->setAttribute('method', 'post')
             ->setAttribute('enctype','multipart/form-data')
             ->setHydrator(new ClassMethodsHydrator(false))
             ->setInputFilter(new InputFilter());

        $this->add(array(
            'type' => 'Zend\Form\Element\Collection',
            'name' => 'banners',
            'options' => array(
                'label' => 'Please choose banners for this product',
                'count' => 1,
                'should_create_template' => true,
                'allow_add' => true,
                'target_element' => array(
                    'type' => 'Admin\Form\BannerFieldset'
                )
            )
        )); 

        $this->add(array(
            'name' => 'submit',
            'attributes' => array(
                'type'  => 'submit',
                'value' => 'Adicionar',
                'id' => 'submitbutton',
                'class' => 'btn btn-large btn-wtg pull-left'
            ),
        ));

    }

    public function getInputFilterSpecification()
    {
        return array(
            
            
        );
    }
}
?>