public function splitData($prefix, $haystack = array())
	{
	    $data = array();
	    
	    if($haystack) {
	        
	        foreach($haystack as $key => $value) {
	            if(strpos($key, $prefix) !== false) {
	                $data[$key] = $value;
	            }
	            
	        }
	        
	    }
	    
	    return $data;
	}