1--TEST--
2Check that SplDoublyLinkedList::add throws an exception with an invalid offset argument
3--FILE--
4<?php
5try {
6    $dll = new SplDoublyLinkedList();
7    var_dump($dll->add([],2));
8} catch (TypeError $e) {
9    echo "Exception: ".$e->getMessage()."\n";
10}
11?>
12--EXPECT--
13Exception: SplDoublyLinkedList::add(): Argument #1 ($index) must be of type int, array given
14