1--TEST-- 2SPL: SplDoublyLinkedList with overridden count() 3--FILE-- 4<?php 5$obj = new SplDoublyLinkedList(); 6$obj[] = 1; 7$obj[] = 2; 8var_dump(count($obj)); 9class SplDoublyLinkedList2 extends SplDoublyLinkedList{ 10 public function count(): int { 11 return -parent::count(); 12 } 13} 14$obj = new SplDoublyLinkedList2(); 15$obj[] = 1; 16$obj[] = 2; 17var_dump(count($obj)); 18?> 19--EXPECT-- 20int(2) 21int(-2) 22
