I have a list of street names and I want to select all that start with \"Al\". In my MySQL I would do something like
SELECT * FROM streets WHERE \"street_nam
See: http://www.mongodb.org/display/DOCS/SQL+to+Mongo+Mapping+Chart
Also, highly recommend just using the native mongodb connector from PHP instead of a wrapper. It's way faster than any wrapper.
http://php.net/class.mongodb