get_class() Needs An Argument

get_class() had a default behavior, where the current class would be returned when get_class() is called without arguments. This is now deprecated.

It is also deprecated for get_parent_class().

PHP code

<?php

class x {
        function foo() {
                echo get_class();
                echo get_parent_class();
        }
}

(new x)->foo();

?>

Calling get_class() without arguments is deprecated

This behavior was deprecated in 8.3.

This behavior changed in 9.0.