is_email()
Copyright 2008-2016 Dominic Sayers [email protected]
BSD License (https://www.opensource.org/licenses/bsd-license.php)
How to use is_email()
- Add the downloaded file is_email.php to your project
- In your scripts use it like this:
require_once 'is_email.php';
if (is_email($email)) echo "$email is a valid email address";- If you want to return detailed diagnostic error codes then you can ask is_email to do so. Something like this should work:
require_once 'is_email.php';
$email = '[email protected]';
$result = is_email($email, true, true);
if ($result === ISEMAIL_VALID) {
echo "$email is a valid email address";
} else if ($result < ISEMAIL_THRESHOLD) {
echo "Warning! $email has unusual features (result code $result)";
} else {
echo "$email is not a valid email address (result code $result)";
}- Example scripts are in the extras folder
Version history
| Date | Component | Version | Notes |
|---|---|---|---|
| 2016-12-07 | (all) | 3.0.7 | Semantic version numbering |
| 2016-12-05 | (all) | 3.06 | Changed all http links to https. Updated my links. Updated copyright. Clarified license |
| 2013-11-29 | tests.xml | 3.05 | Changed Test #71 from ISEMAIL_RFC5321 to ISEMAIL_DEPREC |
| 2013-11-29 | meta.xml | 3.05 | Changed category of ISEMAIL_RFC5321_IPV6DEPRECATED to ISEMAIL_DEPREC |
| 2011-07-14 | tests.xml | 3.04 | Changed my link to https://isemail.info |
| 2011-05-23 | tests.xml | 3.02 | tests.php: Argument no longer passed by reference (deprecated). Test#32: Changed domain to c--n.com because g--a.com no longer has an MX record. |
| 2010-11-15 | meta.xml | 3.03 | Clarified definition of Valid for numpties |
| 2010-10-18 | tests.xml | 3.0 | New schema designed to enhance fault identification. |
| 2010-10-18 | is_email.php | 3.0 | Forensic categorization of email validity |