Solved

RegExp - "NOT Email"

Posted on 2004-08-27
7
415 Views
Last Modified: 2008-03-06
Hi, experts, and thanks for your attention!

I'm a php developer and i badly need to create RegExp evaluating "NOT E-mail", so when i compare string which is not email preg_match will give me "true".

For some reasons i can't just revert preg_match results, because there is a routine which process many patterns and strings and works as described.

By correct E-mail i mean something like *@*.*

Thanks in advance.
0
Comment
Question by:Zmey2
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
7 Comments
 
LVL 16

Accepted Solution

by:
Walter Ritzel earned 168 total points
ID: 11915736
I dont know this kind of regexp validation, just regexps that validates if a email type is a valid one, like this expression:
^(([A-Za-z0-9]+_+)|([A-Za-z0-9]+\-+)|([A-Za-z0-9]+\.+)|([A-Za-z0-9]+\++))*[A-Za-z0-9]+@((\w+\-+)|(\w+\.))*\w{1,63}\.[a-zA-Z]{2,6}$

And in my code, i test if a email is invalid by false return.

Regards,

Walter.
0
 
LVL 18

Assisted Solution

by:arantius
arantius earned 166 total points
ID: 11918487
(!preg_match("^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$", $variable))
0
 

Assisted Solution

by:algid
algid earned 166 total points
ID: 12111191
pattern:
/^(?!([a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$))/

code snippet:
preg_match('/^(?!([a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$))/', $string)
0
 

Expert Comment

by:algid
ID: 12456254
wpcortes and arantius gives regexp which checks whether given string IS EMAIL and then inverses the result. Asker clearly stated it's not what he needs. He needs regexp NOT E-MAIL. Only my solution is valid in this case.
0

Featured Post

Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Dramatic changes are revolutionizing how we build and use technology. Every company is automating, digitizing, and modernizing operations. We need a better, more connected way to work together as teams so we can harness the insights from our system…
When it comes to security, close monitoring is a must. According to WhiteHat Security annual report, a substantial number of all web applications are vulnerable always. Monitis offers a new product - fully-featured Website security monitoring and pr…
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question