#39469 [NEW]: FILTER_VALIDATE_EMAIL does not accept IDN domain names

From: christoph at ziegenberg dot de Operating system: WinXP SP2 PHP version: 5.2.0 PHP Bug Type: Filter related Bug description: FILTER_VALIDATE_EMAIL does not accept IDN domain names Description: ------------ The filter FILTER_VALIDATE_EMAIL does not accept IDN domain names, so valid email addresses are not accepted, the punycode version works. I know the check for this is a little bit complex, because the allowed chars in the domain name depend on the TLD. I think the current behavior is okay as default, but there should be an option to allow IDN domain names. Reproduce code: --------------- <?php var_dump(filter_var('test@tätärätää.de', FILTER_VALIDATE_EMAIL)); var_dump(filter_var('test@xn--ttrt-loabbba.de', FILTER_VALIDATE_EMAIL)); ?> Expected result: ---------------- string(...) "..." string(...) "..." Actual result: -------------- bool(false) string(...) "..." -- Edit bug report at http://bugs.php.net/?id=39469&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39469&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39469&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39469&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39469&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39469&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39469&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39469&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39469&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39469&r=support Expected behavior: http://bugs.php.net/fix.php?id=39469&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39469&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39469&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39469&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39469&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39469&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39469&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39469&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39469&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39469&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39469&r=mysqlcfg