1--TEST--
2Enum properties cannot be passed by-ref
3--FILE--
4<?php
5
6enum Foo: int {
7    case Bar = 0;
8}
9
10function setBarValueByRef(&$bar, $value) {
11    $bar = $value;
12}
13
14try {
15    $bar = Foo::Bar;
16    $value = setBarValueByRef($bar->value, 1);
17} catch (Error $e) {
18    echo $e->getMessage() . "\n";
19}
20
21var_dump(Foo::Bar->value);
22
23?>
24--EXPECT--
25Cannot modify readonly property Foo::$value
26int(0)
27