is_email()
Copyright 2008-2011 Dominic Sayers <[email protected]>
http://isemail.info
BSD License (http://www.opensource.org/licenses/bsd-license.php)
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How to use is_email()
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1. Add the downloaded file is_email.php to your project
2. In your scripts use it like this:
require_once 'is_email.php';
if (is_email($email)) echo "$email is a valid email address";
3. 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)";
}
4. Example scripts are in the extras folder
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Version history
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Date Component Version Notes
.......... ............ ....... ...............................................
2010-10-18 is_email.php 3.0 Forensic categorization of email validity
2010-10-18 tests.xml 3.0 New schema designed to enhance fault
identification.
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
2011-07-14 tests.xml 3.04 Changed my link to http://isemail.info
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
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