How to use Facebook graph API to retrieve fan photos uploaded to wall of fan page?

Question

I am creating an external photo gallery using PHP and the Facebook graph API. It pulls thumbnails as well as the large image from albums on our Facebook Fan Page.

Answer 1

You need to retrieve all the albums and then get all the photos. This can be easily done by using FQL:

SELECT pid,owner,src_small,src_big 
FROM photo 
WHERE aid IN (
    SELECT aid 
    FROM album 
    WHERE owner = your_page_id
)

EDIT:
Also you need to query the stream table to get the wall posts then check if you have attachments and the type of the attachment:

SELECT attachment
FROM stream 
WHERE source_id = 116860675007039

Result:

[
  {
    "attachment": {
      "media": [
        {
          "href": "http://www.facebook.com/photo.php?fbid=1801693052786&set=o.116860675007039",
          "alt": "test",
          "type": "photo",
          "src": "http://photos-f.ak.fbcdn.net/hphotos-ak-snc6/185861_1801693052786_1553635161_1863491_4978966_s.jpg",
          "photo": {
            "aid": "6672812206410774346",
            "pid": "6672812206412558147",
            "fbid": 1801693052786,
            "owner": 1553635161,
            "index": 11,
            "width": 246,
            "height": 198
          }
        }
      ],
      "name": "",
      "caption": "",
      "description": "",
      "properties": [],
      "icon": "http://b.static.ak.fbcdn.net/rsrc.php/v1/yz/r/StEh3RhPvjk.gif",
      "fb_object_type": "photo",
      "fb_object_id": "6672812206412558147"
    }
  },
  {
    "attachment": {
      "description": ""
    }
  },
...etc
]

Answer 2

try this FQL:

SELECT message,attachment,comments
FROM stream
WHERE source_id=YOUR_PAGE_ID AND filter_key="others" AND type=""

filter_key="others" - this will filter posts from everyone else, but not from Admin type="" - this will filter out comments, so will leave you with photos (maybe videos and other strenge things, but removing text posts will reduce result massively)