我的公众号和小程序已经绑定了微信开放平台 但是获取的数据没有UnionID

接口是

"https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$bbb['access_token']."&openid=oLYFvt_l7w5qo1ezHp6-44AYL8v4&lang=zh_CN";

获取的值是

Array
(
    [subscribe] => 1
    [openid] => oLYFvt_l7w5qo1ezHp6-44AYL8v4
    [nickname] => 
    [sex] => 1
    [language] => zh_CN
    [city] => 
    [province] => 
    [country] => 
    [headimgurl] => dzp3fRmenoKNko8mgdnDEDayJ98SCnZtjT6aI3Bzk5oNo6woN0F8tDwDheekP6zIiac/132
    [subscribe_time] => 1591602483
    [remark] => 
    [groupid] => 0
    [tagid_list] => Array
        (
        )

    [subscribe_scene] => ADD_SCENE_QR_CODE
    [qr_scene] => 0
    [qr_scene_str] => 
)