gistfile1.php

$wantsSet = new Rediska_Key_Set("user:".$uid.":m");
        $intersect = $wantsSet->intersect(new Rediska_Key_Set("user:".$uid.":w"));
        $yeahCount = count($intersect);
        if($intersect !== false && $yeahCount > 0)
        {
            $rediska->publish("notify", json_encode(array("uid" => $uid, 'count' => $yeahCount)));
        }