As I mention in the page, I was drawn to the issue when I noticed how much memory was being used when I pulled a large data set from one of our Oracle databases here at work and I thought to myself, "Self, is there any better options?".
My main goal with the application I'm still working on, is to create a database proxy API (so I can submit a JSON request to this PHP application with an actual SQL query, that could then prepared/sent to the Oracle database and the results returned as JSON back to the user). Lots of security-related stuff I'm working on as well to make it happen in a way that won't cause any issues for the database, but this particular subproblem related to memory usage took up a few weeks of my time as I looked into and experimented with using JSON strings directly, and then into GZIP strings (particularly because GZIP was going to be the final output in most cases with Content Negotiation).
All in all it was pretty fun to build the package and just run various performance tests so if you have any questions feel free to ask and I hope someone might be able to use this in their own projects too :-).
Enjoy!