Events list group name

add_filter('em_event_output_placeholder','my_em_groupname_placeholders',1,3);
function my_em_groupname_placeholders($replace, $EM_Event, $result){
	switch( $result ){
		case '#_EVENTBPGROUPNAME':
			$replace = "";
			$groups = groups_get_groups(array('show_hidden'=>true, 'per_page'=>0));
			$user_groups = $groups['groups'];
			foreach($user_groups as $BP_Group){
				if ($BP_Group->id == $EM_Event->group_id){
					$replace = $BP_Group->name;
				}
			}
	}
	return $replace;
}