I'm afraid this script has no utility, at all - the only thing you can gain from a multi-query facility is fewer roundtrips, and this script doesn't give you that. It simply loops over a list of queries, one round-trip to the database per query.
If you need a multi-query facility, check out mysqli::multi_query() which is available in newer versions of MySQL - this lets you execute multiple queries in a single round-trip, eliminating some of the network (waiting) overhead.
I also rated this script "bad" for consistency - using 3-letter shorthands for property-names is extremely bad form. Imagine if all APIs used 3-letter shorthands. Yikes.