PHP API Data Retrieval Fix

My existing PHP script connects to an external API, but the response I receive doesn’t match the data that should be coming back. The authentication step succeeds, so the problem lies somewhere in the way the request is built or the response is parsed.

I need you to step through the current code, isolate the faulty logic, and correct the lines responsible for the wrong data being returned. The script is relatively small and procedural—no frameworks—so you’ll be looking at a handful of functions that wrap a cURL call (feel free to replace it with Guzzle if you think that’s cleaner).

Deliverable: a fixed PHP file (or diff) and a brief note pointing out what was changed and why, so I can learn from the adjustment. Any solution must keep the existing auth flow intact and return the accurate payload exactly as documented by the API provider.