Zend FR

        $r_rows = new stdClass();    
        $r_rows->items = new stdClass();
        $i = 0;        
        foreach($this->natures->items as $nature) {
            $r_rows->items->{$i} = new stdClass();
        
            $r_rows->items->{$i}->test = (object) array(
                'label' => 'Titre',
                'value' => (string)$nature->title_fr                                
            );
        
            $r_rows->items->{$i}->test2 = (object) array(                 
                'label' => 'Controller',
                'value' => (string)$nature->controller
            );
           
            //.....etc
        
            $i++;
        }

foreach($r_rows->items as $item) {
    echo $item->test->label . ':' . $item->test->value . '<br />';            
}