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Bug #54403 FILTER_VALIDATE_EMAIL
Submitted: 2011-03-27 19:29 UTC Modified: 2011-04-11 18:33 UTC
From: mariomaresca at hotmail dot it Assigned:
Status: Not a bug Package: Filter related
PHP Version: 5.3.6 OS: windows 7
Private report: No CVE-ID: None
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From: mariomaresca at hotmail dot it
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 [2011-03-27 19:29 UTC] mariomaresca at hotmail dot it 
Description:
------------
---
From manual page: http://www.php.net/function.filter-var#Description
---


filter_var with FILTER_VALIDATE_EMAIL takes as good this malformed email:

"mail.@mail.com"

Test script:
---------------
$email='mail.@mail.com';
if (filter_var($email, FILTER_VALIDATE_EMAIL))
 echo '$email is good';
else
 echo '$email is bad';

Expected result:
----------------
$email is bad

Actual result:
--------------
$email is good

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 [2011-03-29 11:41 UTC] aharvey@php.net
-Status: Open +Status: Bogus
 [2011-03-29 11:41 UTC] aharvey@php.net 
That's a valid e-mail address: RFC 2822 only requires the local part to be a valid dot-atom, and dot-atom elements may end with a period.
 [2011-03-29 15:18 UTC] tomas dot brastavicius at quantum dot lt 
It is not correct. Address contains no characters other than atext characters or "." surrounded by atext.

dot-atom = [CFWS] dot-atom-text [CFWS]
dot-atom-text = 1*atext *("." 1*atext)

Reference, http://tools.ietf.org/html/rfc2822#section-3.2.4
 [2011-03-29 16:28 UTC] dtajchreber@php.net 
Once the expected/correct behavior is agreed upon, we should also add a test case 
for this. filter's behavior has been inconsistent across the last 10+ releases.
 [2011-03-30 15:29 UTC] carsten_sttgt at gmx dot de 
@aharvey
> That's a valid e-mail address: RFC 2822

According to RFC 2822 and this topic FILTER_VALIDATE_EMAIL is working wrong ("mail.@mail.com" isn't a valid e-mail address, see the answer from Tomas).

BTW:
FILTER_VALIDATE_EMAIL is working according to RFC2822? In the manual I can't read which rules are used for validating e-mails.
 [2011-04-11 18:25 UTC] tomas dot brastavicius at quantum dot lt 
Status of this issue should be changed to Feedback.

We are discussing whether email address mail.@mail.com is valid as per RFC 2822, but the test script works as expected, i.e. filter_var('mail.@mail.com', FILTER_VALIDATE_EMAIL) returns false.
I have checked this against 5.3.3 and the latest trunk, both on Linux.

Perhaps this is Windows specific bug ?
 [2011-04-11 18:33 UTC] mariomaresca at hotmail dot it 
Stop saying that's is a valid email.

Try to valid it with gmail.com Google will say [a-z]. isn't valid in any case.
 
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