I am new to OO concepts in PHP. I have a class called MY\_ controller which is my base class. All classes extend this class. I am using MVC architecture. I am using caching in my system now. So i load the cache variable in the constructor of my base class. I use normal php variable like `$cacheVariable` in my function to store the value from cache. I was wondering if it would serve any help if i store it as a class parameter and use like `$this->cacheVariable`? In each function i get cache value like `$this->cache->get('cacheVariable');` will it help if i get value from `$this->cacheVariable`