微信，qq等第三方登录 iOS中获取不到userinfo 用户信息，求指导

问题已解决服务端对应代码（PHP）：

//获取qq用户信息  
    public function get_qq_userinfo($open_id,$access_token){  
        $app_id='1105829513';//申请来的app id  
        $url='https://graph.qq.com/user/get_user_info?access_token='.$access_token.'&oauth_consumer_key='.$app_id.'&openid='.$open_id;  
        $con=file_get_contents($url);  
        $json=json_decode($con,TRUE);  
        $info=array();  
        $info['NickName']=$json['nickname'];  
        $info['FacePic']=$json['figureurl_qq_2'];  
        return $info;  
    }  
    //获取微信用户信息  
    public function get_wechat_userinfo($open_id,$access_token){  
        $url='https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$open_id;  
        $con=file_get_contents($url);  
        $json=json_decode($con,TRUE);  
        $info=array();  
        $info['NickName']=$json['nickname'];  
        $info['FacePic']=$json['headimgurl'];  
        return $info;  
    }