We are using regular expressions in the checkout of a webshop.
We use: /^[a-zA-Z0-9 .]+$/
This is working well, untill a customer is entering european characters as à, é, ç, ...
I need the regular expression to check if something is entered, no matter what they entered. There should at least be 3 alphabetical characters and one number.
I want to test the expression before a payment will be made.