This doesn't work for the PHP 5.2 test cases as Travis tells us:

```
TEST 318/449 [tests/no-servers/bug00858.phpt]

========DIFF========
006+ ["server:protected"]=>
006- ["server":protected]=>
008+ ["persistent:protected"]=>
008- ["persistent":protected]=>
016+ ["server:protected"]=>
016- ["server":protected]=>
018+ ["persistent:protected"]=>
018- ["persistent":protected]=>
========DONE========
```