Can I instantiate a PHP class inside another class?
class, object, oop, php
Solution
You can't define a class in another class. You should include files with other classes outside of the class. In your case, that will give you two top-level classes `db` and `some`. Now in the constructor of `some` you can decide to create an instance of `db`. For example:
include SITE_ROOT . 'applicatie/' . 'db.class.php';
class some {
public function __construct() {
if (...) {
$this->db = new db;
}
}
}
Problem
I was wondering if it is allowed to create an instance of a class inside another class. Or, do I have to create it outside and then pass it in through the constructor? But then I would have created it without knowing if I would need it. Example (a database class): ``` class some{ if(.....){ include SITE_ROOT . 'applicatie/' . 'db.class.php'; $db=new db ```