Email Validation

[3raser]

\w(.+?)@\w(.+?)\.\w(.+?)

 

Is my RegEx to verify someone has their email in the correct format.

 

It always leaves off the last letter, however. Any idea?

 

Example:

 

input: test@gmail.com

matched: test@gmail.com (notice m is not matched)

[requinix]

That regex will accept

"hey @twitteruser, shut up.everything you say is stupid and wrong"

as an email address. Which it clearly isn't. Find yourself a different regex, and when you do so that might fix your problem. And if not then we'll need to see the regex and your code.

[kicken]

If you're just trying to validate user entered emails (rather than extract them from text or something) then I'd recommend you just use PHP's filter_var function with the email filter rather than try and re-invent the wheel writing your own regex.

[requinix]

rather than try and re-invent the wheel writing your own regex.

Because I just love bringing this up, linky. The wheel is a complicated beast.

 

Also worth noting: if a regex is too restrictive and a user doesn't want to enter a real address, they can very easily just put in "nobody@example.com". Totally valid. That's why places that need a real email address typically send a confirmation message.

Edited October 17, 2012 by requinix