function search(&$api, $uids)
02	{
03	    //obtain list of photos to search in
04	    $photoUrls = getPhotoUrls();
05	    $urls = array();
06	    $count = 0;
07	    foreach ($photoUrls as $photoUrl)
08	    {
09	        //max photos per recognition call is 30, so break photos to groups if needed
10	        $urls[] = $photoUrl;
11	        $count++;
12	        if (($count % 30) == 0 || $count == count($photoUrls))
13	        {
14	            $response = $api->faces_recognize($urls, $uids);
15	            foreach ($response->photos as $photo)
16	            {
17	                //skip empty tags and errors
18	                if (empty($photo->tags))
19	                    continue;
20	                $url = $photo->url;
21	                //echo all found tags
22	                foreach ($photo->tags as $tag)
23	                {
24	                    if (!empty($tag->uids))
25	                    {
26	                        //only interested in highest score for this tag
27	                        $uid = $tag->uids[0]->uid;
28	                        $conf = $tag->uids[0]->confidence;
29	                        //only print if confidence is higher than recommended threshold
30	                        if ($conf >= $tag->threshold)
31	                            echo "$uid was found in url $url ($conf % confidence)n";
32	                    }
33	                }
34	            }
35	            $urls = array();
36	        }
37	    }
38	}