I’m working on a hotel reservation system where I need to accurately calculate room availability, including rooms that are listed as “extra rooms” in reservations. Here’s the scenario:

I want to retrieve products between 2 upc
I made this request but I have [] as response.
I put this request on phpmyadmin and it works, and yes upc1 and upc2 are correctly set.
Someone could help me and tell me why I don’t have any result ? Thanks in advance?