Remove KEYS from PHP to JSON

removeem

private function fix_keys($array) {
        $numberCheck = false;
        foreach ($array as $k => $val) {
            if (is_array($val)){
                $array[$k] = $this->fix_keys($val);
            }
            if(is_numeric($k)){
                $numberCheck = true;
            }
        }
        if($numberCheck === true){
            return array_values($array);
        } else {
            return $array;
        }
    }