Silverlight | WPF | Microsoft.Net » rest http://joel.neubeck.net Simplifing structure without changing results Fri, 01 Apr 2011 21:34:22 +0000 en hourly 1 http://wordpress.org/?v=3.1 Facebook – fbml_refreshImgSrc http://joel.neubeck.net/2007/10/facebook-fbml_refreshimgsrc/ http://joel.neubeck.net/2007/10/facebook-fbml_refreshimgsrc/#comments Thu, 18 Oct 2007 21:08:39 +0000 joel http://joel.neubeck.net/2007/10/facebook-fbml_refreshimgsrc/ Maybe its just a temporary thing, but lately the Facebook server has had major issues with caching images.  If you are unaware, all images that are placed within a users profile page get scraped by Facebook and served up from their own internal servers.  If for some unforeseen reason there scraper fails your image gets replaced with an invisible pixel spacer gif.  To force the cache to update you have to manually call the fbml_refreshImgSrc method on their REST server.  The easiest way to accomplish this is to create a dedicated page that uses an infinite session.  Here is the PHP page I created to update the images as necessary.

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$myClass = new my_class($api_key, $secret); 
//this sets a user and session 
$myClass ->facebook->set_user($global_user, $global_session); 
if(isset($_GET['url'])) { 
  echo '' . $myClass ->facebook->api_client->fbml_refreshImgSrc($_GET['url']) .''; 
}
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