I was going to post this in the "Advanced" forum, but apparently only OPs can do that. So, hopefully it will be acceptable for me to post this here.
Is there any way to "force" a form field to (1) have to contain a value, and (2) contain a valid value?
For the NAME, EMAIL, and URL input fields on my form, I want to check to see if the fields contain valid data before accepting the submission. Is there a way to do this?