Costum validation rule

Question

Hello Max.

is it posible to define a function in an PHP custom validation rule. I have tried this with the functions to check an IBAN account number. I always get that the number is false. In a separate PHP file with the same functions it works right. Is there a solution for this?

greeting Paul

Max_admin · Accepted Answer

Hi PKoll yes, this is explained here: How to use custom JavaScript or PHP validation in your form - ChronoForms8 - FAQs

Costum validation rule

Use a custom PHP validation rule in ChronoForms.

Overview