I need to check/clear lockedByIntruder in php's ldap. The target server is
oes2 edirectory 8.8

1) Can it be set? To 0, false, "", or some kind of null?

2) If it's not set and I try to check it does it return an error?

This property unlike the other properties I'm working with is a boolean. It
seems to not behave the same for getting and setting purposes.

If I knew more about what to expect from this attribute I'd know better how
to fix my code.

Any help appreciated.