Req #55865 [Opn->Csd]: email cyrillic symbols contains are not valid at filter_var function

Edit report at https://bugs.php.net/bug.php?id=55865&edit=1 ID: 55865 Updated by: cmb@php.net Reported by: mitallast at gmail dot com Summary: email cyrillic symbols contains are not valid at filter_var function -Status: Open +Status: Closed Type: Feature/Change Request Package: Filter related Operating System: nix*, mac PHP Version: 5.3.8 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Unicode in the local-part of email addresses is supported through the FILTER_FLAG_EMAIL_UNICODE flag as of PHP 7.1.0, see <https://3v4l.org/vVCS1>. Support for IDN is already covered by request #39469, so I'm closing this ticket. Previous Comments: ------------------------------------------------------------------------ [2015-06-15 23:26:28] cmb@php.net Actually, this is not a bug, because the documentation[1] states: | In general, this validates e-mail addresses against the syntax | in RFC 822, [...] However, IDNs are not allowed by RFC 822, let alone local parts with non ASCII characters; these are subject of RFC 6530-6533. Therefore I'm switching to feature request, and do not mark this ticket as duplicate of request #39469, because that request is only about IDN support. [1] <http://php.net/manual/en/filter.filters.validate.php> ------------------------------------------------------------------------ [2012-07-15 00:00:50] doomasmile at gmail dot com Signed. Function must be refactored. http://en.wikipedia.org/wiki/.%D1%80%D1%84 ------------------------------------------------------------------------ [2011-11-25 09:03:08] enderstd at gmail dot com I think this behaviour is all right. There is a punycode form for IDN domains, and filter_var undestands it well enough, yet not without some issues. But I think punycode is way to go. http://en.wikipedia.org/wiki/Punycode And by the way, "тест@тест.рф" is invalid email anyway, because mailbox can't contain IDN characters, I think it violates some basic SMTP RFC. Valid domain would be like "test@тест.рф". ------------------------------------------------------------------------ [2011-10-07 15:02:43] mitallast at gmail dot com Description: ------------ Php contains filter_var function with predefined constaint FILTER_VALIDATE_EMAIL. This function incorrect validate email with cyrrilic symbols. Error can be at file "ext/filter/logical_filters.c" at function "void php_filter_validate_email(PHP_INPUT_FILTER_PARAM_DECL)" Test script: --------------- <?php $value = "тест@тест.рф"; var_dump(filter_var($value, FILTER_VALIDATE_EMAIL)); Expected result: ---------------- (boolean)true Actual result: -------------- (boolean)false ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55865&edit=1