If you're having trouble, there are lots of resources you can turn to. IRC The official MongoDB IRC room is irc.freenode.net/#mongodb. This is the fastest way to get help. Mailing List MongoDB's mailing list is a good (and usually very fast) way to get answers to questions. Bug Tracker Found a bug? Want a feature? Have a question? File it in the PHP driver's bug tracker. You can make the driver log all kinds of error messages as E_NOTICE level PHP error messages. Have a look at the MongoLog for an example.