We help IT Professionals succeed at work.

We've partnered with Certified Experts, Carl Webster and Richard Faulkner, to bring you two Citrix podcasts. Learn about 2020 trends and get answers to your biggest Citrix questions!Listen Now

x

Validating user's email address input from form

Kapusta
Kapusta asked
on
Medium Priority
176 Views
Last Modified: 2013-12-25
#2: How can I detect if an email address entered on a form contains a "@" symbol, and at least one period "."?  I am trying to perform an error check on the input.  I know a little CGI scripting, so I am not asking for a complete script...just a "if...then" snippet would do fine.
Comment
Watch Question

Which language please?
Ok, its Perl.

Commented:
If you are talking perl -

if ($email =~ /\@.+\./ {
# "good"
} else {
# "bad"
}

That does what you ask - checks for a @ and a . after the @, but that really doesn't validate the email address. Look at http://www.perl.com/CPAN-local/doc/FAQs/FAQ/PerlFAQ.html#How_do_I_check_a_valid_email_ad for a discussion and a pointer to a script that will do a better job.

If this answers your question, let me know and I will repost it as an answer. Good luck!

Commented:
oops, that line was supposed to be

if ($email =~ /\@.+\./) {

(forgot a ")")
Commented:
Just to restate this as an answer, the following does what you asked for.

if ($email =~ /\@.+\./) {
 # "good"
} else {
 # "bad"
}

But see http://www.perl.com/CPAN-local/doc/FAQs/FAQ/PerlFAQ.html#How_do_I_check_a_valid_email_ad for info on why this might not be what you really want to do.

good luck!

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.