1--TEST--
2Bug #69537 (__debugInfo with empty string for key gives error)
3--FILE--
4<?php
5class Foo {
6
7 public function __debugInfo(){
8 return ['' => 1];
9 }
10}
11
12var_dump(new Foo);
13?>
14--EXPECTF--
15object(Foo)#%d (%d) {
16 [""]=>
17 int(1)
18}
19
