I have created a facebook application for sending messages.I am posting some content and image to my wall using php facebook feed code.Normally when i post something on my wall it will visible on my friends news feed.But my wall post is not visible on my friends news feed. The code for posting wall is

$attachment = array(
    'access_token' => $AccessToken,
    'message' => "$Msg",
    'name' => 'some content',
    'link' => $link,
    'picture' => "$ShareImage",
    'description' => '',
    'caption'=>'',
);

So i remove the hole content and rebuild the code like this

$AccessToken       = $this->facebook->getAccessToken();
        $attachment = array(
        'access_token' => $AccessToken,
        'message' => 'http://www.mysutec.com/stie/test',
        );
        $send = $this->facebook->api("/".$fbid."/feed", 'POST', $attachment);

Then also the the content is not showing on friends wall.But in facebook developer document they mention link sharing

http://developers.facebook.com/docs/reference/api/link/

How i can implement this using graph api(php)