1--TEST--
2ReflectionEnum::getBackingType()
3--FILE--
4<?php
5
6enum Enum_ {}
7enum IntEnum: int {}
8enum StringEnum: string {}
9
10function test(): string {}
11
12var_dump((new ReflectionEnum(Enum_::class))->getBackingType());
13echo (new ReflectionEnum(IntEnum::class))->getBackingType() . "\n";
14echo (new ReflectionEnum(StringEnum::class))->getBackingType() . "\n";
15
16?>
17--EXPECT--
18NULL
19int
20string
21