Bug #69844 [NEW]: FILTER_VALIDATE_EMAIL rejects unusual but valid addresses

From: grzegorz129 at gmail dot com Operating system: Any PHP version: 7.0.0alpha1 Package: Filter related Bug Type: Bug Bug description:FILTER_VALIDATE_EMAIL rejects unusual but valid addresses 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 bug report at https://bugs.php.net/bug.php?id=69844&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69844&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69844&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69844&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69844&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69844&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69844&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69844&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69844&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69844&r=support Expected behavior: https://bugs.php.net/fix.php?id=69844&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69844&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69844&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69844&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69844&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69844&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69844&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69844&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69844&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69844&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69844&r=mysqlcfg