private function checkDiffMulti($array1, $array2){
        $result = array();
        foreach($array1 as $key => $val) {
            if(isset($array2[$key])){
                if(is_array($val) && $array2[$key]){
                    if(count($this->checkDiffMulti($val, $array2[$key])) > 0)
                    {
                        $result[$key] = $this->checkDiffMulti($val, $array2[$key]);
                    }
                }
                elseif($val != $array2[$key]){
                    $result[$key] = $array2[$key];
                    if($key == 'qty') $result[$key] = $val+$array2[$key];
                    if($key == 'dedications'){
                        $varArr = json_decode(urldecode($val));
                        $varArr2 =  json_decode(urldecode($array2[$key]));
                        $result[$key] = urlencode(json_encode($varArr + $varArr2));
                    }
                }
            } else {
                $result[$key] = $val;
            }
        }
        return $result;
    }