PHP: Database Connection Class Constructor Method

Question

I\'m new to OOP. Originally I was defining variables and assigning values to them within the class and outside of the constructor, but after an OOP lesson in Java today, I was t

Answer 1

Since your are only using them into the __construct method, you don't need them as class attributes. Only the $connection has to be kept for later use imho.

It might be much much better to not give any default values to those arguments but let them being set from the outside.

$db = new DatabaseConnection("localhost", "user", "password", "db");

They are plenty of PHP tools for that already, find them, read them and learn from that. First of all, use PDO and what is true in Java isn't always true in PHP.