Use self()

I’m building a database abstract layer in PHP using a Singleton pattern, I based my code the following article.

In the comments, I found that you can self-instantiate a class with “self” instead of calling it by name, very useful if you plan to change the class name over time.

Must re-write code if you change the class name:

self::$m_pInstance = new Database();

No worries with self():

self::$m_pInstance = new self();