Zend FR

<?php
class FormulaireUpload extends Zend_Form
{
    public function __construct($uploadPath,$options = null)
    {
        parent::__construct($options);
        $this->setName('upload');
        $this->setMethod('post');
        $this->setAttrib('enctype', 'multipart/form-data');         
        
        $id=new Zend_Form_Element_Hidden('id');
        $host=new Zend_Form_Element_Hidden('host');
        
        $upfile = new Zend_Form_Element_File('upfile');
        $upfile->setLabel('upload picture : ')
            ->setRequired(true)    
            ->addValidator('NotEmpty')
            ->addValidator('Extension',false,array('jpg','png','gif','bmp'))
            ->addValidator('size',false,1048576)
            ->setDestination($uploadPath);
                    
        $submit = new Zend_Form_Element_Submit('submit');
        $submit->setLabel('Upload');
        $this->addElements(array($id, $host,$upfile, $submit));
    }
}

public function pictureAction()
   {
       $id = (int)$this->_request->getParam('id',0);  
       $ctr=new Country_CountryDes();
       $country=$ctr->fetchRow('CTR_ID='.$id);
           $lien="/var/www/test/htdocs/images/country/".$country->NAME;
           $upv="/htdocs/images/country/".$country->NAME;
    $up=realpath($lien);
    $this->view->upv=$upv;//le lien à envoyer vers la vue
    
    //affichage des images de cet pays
    $im=new Picture_Picture();
    $imgs=$im->fetchAll('PICTURE_ID='.$id);
    $this->view->imgs=$imgs;
    //le nom du fichier
    $tab=explode(" ",$country->NAME);
    $nom=implode("_",$tab);
    $nom.="_".$country->NOMBRE_IMAGES;
    
    $form = new FormulaireUpload();
    $form->getElement('host')->setValue($id);
    $this->view->form = $form;
    //tester si le formulaire est posté
    if ($this->_request->isPost()) {        
        $formData = $this->_request->getPost();
        $name=$form->getValue('upfile');
        $tab=explode('.',$name);
        $newtab=array();
        $newtab[0]=$nom;
        $newtab[1]=$tab[sizeof($tab)-1];
        $newname=implode(".",$newtab);
        rename($up."\\".$name, $up."\\".$newname);
        if ($form->isValid($formData)) {
            $img=new Picture();
                        $row=$this->createRow();
                $row->PICTURE_ID=$form->getValue('host');
                $row->URL=$newname;                
                $row->save();
            $this->_redirect('/country/picture/id/'.$id);            
        } else 
            $form->populate($formData);
    }
   }

Notice: Undefined index: filters in /var/www/test/application/lib/Zend/File/Transfer/Adapter/Abstract.php on line 796

Fatal error: Unsupported operand types in /var/www/test/application/lib/Zend/File/Transfer/Adapter/Abstract.php on line 796