Bug #75979 [NEW]: mb_encode_mimeheader invalid MIME quoted-printable

From: azurit at pobox dot sk Operating system: linux PHP version: 7.2.2 Package: mbstring related Bug Type: Bug Bug description:mb_encode_mimeheader invalid MIME quoted-printable Description: ------------ Function mb_encode_mimeheader is NOT quoting a colon character (:), which is against RFC, see: https://tools.ietf.org/html/rfc5322#section-3.2.3 See also this very same Thunderbird bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1438590 Test script: --------------- <?php mb_internal_encoding('UTF-8'); echo mb_encode_mimeheader("test:test", "UTF-8", "Q"); ?> Expected result: ---------------- test=3atest Actual result: -------------- test:test -- Edit bug report at https://bugs.php.net/bug.php?id=75979&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75979&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75979&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75979&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75979&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75979&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75979&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75979&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75979&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75979&r=support Expected behavior: https://bugs.php.net/fix.php?id=75979&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75979&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75979&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75979&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75979&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75979&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75979&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75979&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75979&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75979&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75979&r=mysqlcfg