Can a DI container inject classes into the constructor that are not declared in the container?

Question

PHP

Let's say

class Expample {
function __construct(Responser $responser) {}
}

$di = new DI();
$di->set('expample', 'Example');

The Responser class is not registered with the container. Does Di have the right to look for a Responser outside of itself and, if found successfully, inject it into the constructor? Or should he look for the Responser only inside himself, in case of absence, throw an exception?

Answer 1

container.thephppleague.com/auto-wiring