How to write regex to verify a comma delimited list of values

Question

I am using SobiPro, a directory system for joomla and I have a field that will have values that contain alphanumerics and hyphens only, so a sample of what might be in this

Answer 1

Try this:

[-\w\s]+(,[-\w\s]+)*

[-\w\s] means a word character, space or hyphen.

A word character usually includes _, so you may want to replace that with A-Za-z0-9 if you want to prevent this.

[-A-Za-z0-9\s]+(,[-A-Za-z0-9\s]+)*