Here is my file upload code. You'll notice that the validator is commented out, this is not because it didn't work, it's because I don't need it. It's an internal application and doesn't need any validaiton.

gistfile1.php

use Zend\File\Transfer\Adapter\Http;

$adapter = new Http(); 

        //$size = new Size(array('min'=>2000)); //minimum bytes filesize
  			
			
				
				//$adapter->setValidators(array($size), $File['name']);
				
				/*if (!$adapter->isValid()){
				$dataError = $adapter->getMessages();
				$error = array();
				foreach($dataError as $key=>$row)	
				{
					$error[] = $row;
					
				} 
				
				
				
			} else {
				*/
				
				
				
				$currentPath = explode("/", dirname(__DIR__));
				$directory = "/" . $currentPath[1] . "/" . $currentPath[2] . "/uploads/" . $appt . "/";
				
			
				
				//see if the directory is created:
				if (!file_exists($directory))
				{
					mkdir($directory);
				}
				
				
				
				$adapter->setDestination($directory);
				if ($adapter->receive($uplfile['name'])) {
					
				
					$rtn["success"] = "true";
					
				}
				else
				{
					$rtn["success"] = "false";	
				}