3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php mb_internal_encoding('ISO-8859-1'); echo 'Subject: ', mb_decode_mimeheader('=?UTF-8?B?w5DCncOQwr7DkMKyw5HCi8OQwrkgw5DCusOQwr7DkMK8w5A=?= =?UTF-8?B?wrzDkMK1w5DCvcORwoLDkMKww5HCgMOQwrjDkMK5IMOQwr3DkMKwIA==?= =?UTF-8?B?w5DCv8OQwr7DkMK0w5DCv8OQwrjDkcKBw5DCsMOQwr3DkMK9w5HCgw==?= =?UTF-8?B?w5HCjiDDkMKSw5DCsMOQwrzDkMK4IMORwoLDkMK1w5DCvMORwoM=?=');
based on mJdYJ
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Subject: Новый комментарий на подписанную Вами тему