Jason Wong <[EMAIL PROTECTED]> wrote on 08/21/2002 10:00:23 AM:

> On Thursday 22 August 2002 00:29, [EMAIL PROTECTED] wrote:
> > I hope this isn't too far off topic -
> >
> > I have a regex for validating email addresses -
> >
> > if (empty($useremail) || !eregi("^([A-Za-z0-9\.\_-])+@([A-Za-z0-9\_-])
> > ([A-Za-z]{2,3})+$", $useremail))
> >
> > Notice the {2,3} which is supposed to limit the last part to 2 or 3
> > letters, but I have been testing this and
> > it allows as many letters as I put in there, but not 1 only.
> > What's wrong?
> > Also, when using eregi do I need to specify A-Za-z or just a-z, since
it is
> > case-insensitive?

> You're strongly advised not to write your own regex for validating email
> addresses. Your regex (once you get it working) will invalidate a lot of
> valid email addresses. Search archives, or google for some tried and
> regex which will do the job properly.

> --
> Jason Wong -> Gremlins Associates -> www.gremlins.com.hk

This is from a php/mysql book. I added the parenthesis simply to group the
sections, and added the {2,3} because a web site tutorial shows that will
limit the preceding section to that many characters (2 or 3 only in this
The script works fine without the {2,3}, and I may have to use it that way,
since another response mentioned foreign addresses, I hadn't taken into
I'd just like to know why it doesn't work, becuase the it's supposed to.


> /*
> The most important things, each person must do for himself.
> */

Interesting tag considering your respoonse that I shouldn't do this mysqlf,
eh? :-)

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