How can a class be called without creating an instance?

Question

PHP

We need to call the class without creating an instance of it, here is the code:

$filesystem = new FileSystem();
$filesystem->DeleteAllDirectory('../../server/users/' . $_SESSION['user']['user_folder']);

Answer 1

For non-static methods, you must create an instance, but you can do this

(new FileSystem())->DeleteAllDirectory('../../server/users/' . $_SESSION['user']['user_folder']);