GPG in PHP

Hi! I have trouble executing gpg via php. GPG returns error code 127. I got like one google hit on that saying it had to do with open_basedir being on, it's off here. And anyway I would like to do this even if open_basedir was active. This is my test code (both return the same error): $result = exec("gpg -h", $output, $errorcode); $result = exec("gpg --list-keys", $output, $errorcode); Any ideas of what can be wrong? I've been asking some GPG folks, but haven't been able to get a good answer. Kind Regards Emil