Bug #69844 [Opn->Nab]: FILTER_VALIDATE_EMAIL rejects unusual but valid addresses

Edit report at https://bugs.php.net/bug.php?id=69844&edit=1 ID: 69844 Updated by: rasmus@php.net Reported by: grzegorz129 at gmail dot com Summary: FILTER_VALIDATE_EMAIL rejects unusual but valid addresses -Status: Open +Status: Not a bug Type: Bug Package: Filter related Operating System: Any PHP Version: 7.0.0alpha1 Block user comment: N Private report: N New Comment: This is working as documented. We validate according to RFC822 and don't allow IDNs. The simple work-around if you want IDN support is to call idn_to_ascii() first. Previous Comments: ------------------------------------------------------------------------ [2015-06-15 22:22:53] grzegorz129 at gmail dot com Description: ------------ Some weird (but still perfectly valid) e-mail addresses are rejected by filter_var with FILTER_VALIDATE_EMAIL filter. I've got sample data from https://en.wikipedia.org/wiki/Email_address#Valid_email_addresses While support for comments was mention before I was unable to find any references to spaces. Test script: --------------- $emails = array( 'test@example.com', 'test.derp@example.com', 'test+nick@example.com', 'abc."defghi".xyz@example.com', '"abcdefghixyz"@example.com', 'jsmith@[192.168.2.1]', 'jsmith@[IPv6:2001:db8::1]', 'long.but.still.perfectly.valid.email.address@on.even.longer.domain.name.owned.by.some.weird.name.company.which.name.you.cannot.pronounce.com', 'other.email-with-dash@example.com', '"much.more unusual"@example.com', '"very.unusual.@.unusual.com"@example.com', '"very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual"@strange.example.com', 'admin@mailserver1 (local domain name with no TLD)', '#!$%&\'*+-/=?^_`{}|~@example.org', '"()<>[]:,;@\\\"!#$%&\'*+-/=?^_`{}| ~.a"@example.org', '" "@example.org (space between the quotes)', '☃☃☃@example.com (Unicode characters in local part)', '☃☃☃@☃☃☃.com (Unicode characters in domain part)', 'new@domain.pizza' ); foreach ($emails as $email) { echo (filter_var($email, FILTER_VALIDATE_EMAIL)) ? "[+] Email $email is valid\n" : "[-] Email $email is NOT valid\n"; } Actual result: -------------- http://3v4l.org/qTsVc ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69844&edit=1