public function CheckMobileUser($data){        $sql='select phone,username from wlzbpre_user where phone="'.$data['phone'].'" or username="'.$data['phone'].'" and status="1" limit 1';        $phone=M()->query($sql);        $phone =$phone[0]['phone'];        $username=$phone[0]['username'];        if(empty($phone)){            $remark=array(                'RespCode'=>'081',                'RespDesc'=>'手机号/用户名不存在',                'AcctDetails'=>array('token'=>''),            );        }else{            $remark=array(                'RespCode'=>'000',                'RespDesc'=>'手机号已存在',                'AcctDetails'=>array('phone'=>$phone,'username'=>$username),            );        }        return $remark;    }