Php 使用facebook图形API检查isfriend？

我得到了我朋友的用户ID，有时他会把我从朋友列表中删除，我如何使用API检查，具体ID是否是我的朋友。

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谢谢

我通过运行此fql解决了这个问题

$fql_areFriends = "SELECT uid1, uid2 FROM friend WHERE uid1=$user_Id AND uid2=[USER_ID_OF_THE_FRIEND]";

  $friends       = $client->api(array(
                  'method'       => 'fql.query',
                  'access_token' => $user_access_token,
                  'query'        => $fql_areFriends,
                ));

if($friends!=null){
echo 'You Are Connected to friend
}
else{
echo 'You Are Not Connected to friend

}

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我通过运行这个fql解决了这个问题

$fql_areFriends = "SELECT uid1, uid2 FROM friend WHERE uid1=$user_Id AND uid2=[USER_ID_OF_THE_FRIEND]";

  $friends       = $client->api(array(
                  'method'       => 'fql.query',
                  'access_token' => $user_access_token,
                  'query'        => $fql_areFriends,
                ));

if($friends!=null){
echo 'You Are Connected to friend
}
else{
echo 'You Are Not Connected to friend

}