-// Returns an array of group id's this contact is a member of.
-// This array will only contain group id's related to the uid of this
-// DFRN contact. They are *not* neccessarily unique across the entire site.
-
-
-if (! function_exists('init_groups_visitor')) {
-function init_groups_visitor($contact_id) {
- $groups = array();
- $r = q("SELECT `gid` FROM `group_member`
- WHERE `contact-id` = %d ",
- intval($contact_id)
- );
- if (DBM::is_result($r)) {
- foreach ($r as $rr)
- $groups[] = $rr['gid'];
- }
- return $groups;
-}}
+/**
+ * @brief Kills the "Friendica" cookie and all session data
+ */
+function nuke_session()
+{
+ new_cookie(-3600); // make sure cookie is deleted on browser close, as a security measure
+ session_unset();
+ session_destroy();
+}