[trebor]

Well, that isn't the use-case I would need. The whole app would be written in PHP, so there would be no node process to execute the function. Invoking the function in node would require launching it, which would take a lot of time.

I'm thinking of various sites that need a "script" condition for domain logic. Like, "this coupon applies when your cart contains 5 items worth at least $5 each". If the client tried to write the logic for that they'd have no clue how. But a graph editor would be make that user-friendly.

There's just not a lot of FBP stuff for PHP, even though it's a popular language.