+use Friendica\Core\Addon;
+use Friendica\Core\L10n;
+use Friendica\Util\DateTimeFormat;
+
+require_once 'include/datetime.php';
+
+function membersince_install()
+{
+ Addon::registerHook('profile_advanced', 'addon/membersince/membersince.php', 'membersince_display');
+}