by Paul Nicholls.
Just thought I'd better check - it's easy enough to forget, even if you know you need to do the restart
Was that php info dump from an external script, or from Moodle's phpinfo page (Site Administration -> Server -> PHP info)? It might pay to check the latter, as that might help you find any alternate config files (as per Andreas's post). Otherwise, your hosting provider might be doing some trickery to limit those settings (assuming you're not hosting it yourself - you didn't specify), so you might have to take it up with them if you can't get anywhere yourself.