php - Get the 20 most recent photos from an album (JSON) -

i'm trying 20 recent photos album using following json feed: (link)

my code works, issue aren't recent photos album:

<?php     $pic_url = "https://graph.facebook.com/10151316456544622/photos?fields=picture,name,source,created_time&limit=20"; //change limit allow more items     $pictures = json_decode(file_get_contents($pic_url));     $countpic= sizeof ($pictures->data); // number of pics later use     for($p=0; $p<$countpic; $p++):         $thumb_url = "https://graph.facebook.com/".$pictures->data[$p]->id."/picture";         $thumb = $pictures->data[$p]->source; ?>     <li>         <a href="<?php echo $thumb_url; ?>" class="fresco hover" data-fresco-group="facebook" data-fresco-caption="<?php echo $pictures->data[$p]->name; ?>">             <div><div class="hover"></div><img style="width: 225px; height:250px;" title="<?php echo $pictures->data[$p]->name; ?>" alt="<?php echo $pictures->data[$p]->name; ?>" src="<?php echo $thumb_url; ?>"></div>         </a>     </li> <?php endfor; ?> 

instead of getting result graph api may consider use fql more apt situation 1 having. can query photos fql (documentation) within album similar graph api , can order same in decreasing created time, recent one. query like

select src,created,caption photo album_object_id=10151316456544622  order created desc limit 20 

which can view through link.

additionally, access facebook's resources through access token, ward of errors @ later stage. may use app access token, looks publicly available data.