[Mister_Snuggles]

Is https://delphi.fandom.com/wiki/Delphi_for_PHP the one you're thinking of?

This is truly interesting, and the description on that wiki page suggests that it might be exactly what I'm looking for, but it seems like any concrete information about it has vanished.

[aforwardslash]

Its a very old product, and afaik it was discontinued (many) years ago. It was reasonable for crud applications, nowadays you can do rougly the same with any oss airtable clone. Could have been a great tool, but unfortunely poor marketing and lack of vision killed the product.