1--TEST--
2Attribute flags type is validated.
3--FILE--
4<?php
5
6#[Attribute("foo")]
7class A1 { }
8
9#[A1]
10class Foo {}
11
12try {
13    (new ReflectionClass(Foo::class))->getAttributes()[0]->newInstance();
14} catch (Error $e) {
15    echo $e->getMessage(), "\n";
16}
17
18?>
19--EXPECT--
20Attribute::__construct(): Argument #1 ($flags) must be of type int, string given
21