PHP-API，作为用户发布到帖子，而不是在添加链接时作为站点发布

I'm trying to post to a wall of a site from my php-application. It works fine, I can add a post as a site (means the post appears as being from the site on the wall). When I add a link to the post the post gets posted in my name (being administrator of the site), but of course I'd like to have that it appears still in the name of the site.

I'm just using the normal api-call. Is this some kind of strange restriction? I remember that it worked some time ago. Any idea? Thanks.

$facebook->api("/mysite/feed", "post", array(
            message => $data['text'],
            name => $data['title'],
            page_id => "mysite",
            access_token => $ACCESS_TOKEN,
            link => "http://www.my_site.ch/news.php?news=" . $ret,
            caption => $data['title']
            ));

If you are posting on a facebook page, use the page access token instead of the user's access token to post on behalf of the page; instead of user.