You can do this. I don't know how, and I don't think it's a feasible use of my time, to find out how. It's obviously computable on a Turing machine, because they were able to patch PHP.
> I don't know how
You are spreading misinformation then.
The configuration change was never a full protection from this vulnerability because the problem is with how PHP processed the request well before the configuration or your PHP code was executed.
So it was useless advice? You presented it as if anyone not following the advice is incompetent, now you suggest nobody knows how to do it. Is everyone incompetent?