3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo mb_encode_mimeheader("äöäüõõüö <eöl@mäil.cüm>", "UTF-8"); ?>
Output for 5.6.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
=?UTF-8?B?w6TDtsOkw7zDtcO1w7zDtiA8ZcO2bEBtw6RpbC5jw7xtPg==?=
Output for 4.3.0 - 5.5.38
=?UTF-8?B?w4PCpMODwrbDg8Kkw4PCvMODwrXDg8K1w4PCvMODwrYgPGXDg8K2bEBtw4M=?= =?UTF-8?B?wqRpbC5jw4PCvG0+?=