[2011-08-22 17:00 UTC] ch@php.net

Description:
------------
The FILTER_VALIDATE_EMAIL check fails with valid adresses that contain "--" twice because they have e.g. a German Umlaut ("ä") after a dash ("-").

The following examples can be verified using the converter tool on the DeNIC page at http://www.denic.de/domains/internationalized-domain-names/idn-konvertierung.html

 IDN: example-ä.de
 ACE-String: xn--example--7za.de


Test script:
---------------
--TEST--
Bug #XXXXX (FILTER_VALIDATE_EMAIL fails with valid addresses containing "--" twice)
--FILE--
<?php

$email_address = "test@xn--example--7za.de"; // "example-ä.de"
var_dump(filter_var($email_address, FILTER_VALIDATE_EMAIL));    

?>
--EXPECTF--
%unicode|string%(21) "test@xn--example--7za.de"


Expected result:
----------------
"test@xn--example--7za.de"

Actual result:
--------------
bool(false)

$ TEST_PHP_EXECUTABLE=/home/chammers/workspace/php-src-5.4/sX.phpt /php ./run-tests.php ext/filter/tests/bugXXXXX

=====================================================================
PHP         : /home/chammers/workspace/php-src-5.4/sapi/cli/php 
PHP_SAPI    : cli
PHP_VERSION : 5.4.0beta1-dev
ZEND_VERSION: 2.4.0
PHP_OS      : Linux - Linux sys-251 2.6.38-bpo.2-686 #1 SMP Tue Jun 14 11:43:18 UTC 2011 i686
INI actual  : /home/chammers/workspace/php5/php5-5.3.3
More .INIs  :  
CWD         : /home/chammers/workspace/php5/php5-5.3.3
Extra dirs  : 
VALGRIND    : Not used
=====================================================================
Running selected tests.
FAIL Bug #XXXXX (FILTER_VALIDATE_EMAIL fails with valid addresses containing "--" twice) [ext/filter/tests/bugXXXXX.phpt] 

 [2011-12-04 14:52 UTC] iliaa@php.net