Get user groups that he is member of (not his own groups)

memeberof_groups.php

$id     = 2;

$groups = new OssnGroup;
$joined = ossn_get_relationships(array(
		'to' => $id,
		'type' => 'group:join:approve'
));
$myown  = $groups->searchObject(array(
		'type' => 'user',
		'subtype' => 'ossngroup',
		'owner_guid' => $id
));
if($myown) {
		foreach($myown as $mitem) {
				$mowngroups[] = $mitem->guid;
		}
}
if($joined) {
		foreach($joined as $item) {
				if(!in_array($item->relation_from, $mowngroups)) {
						$ids[] = $item->relation_from;
				}
		}
		$joinedids       = implode(',', $ids);
		$groups_memberof = $groups->searchObject(array(
				'type' => 'user',
				'subtype' => 'ossngroup',
				'wheres' => "o.guid IN ('$joinedids')"
		));
}