Php 首先是好友，然后是喜欢列表中的其他用户

我有桌子：

likes - id, user_id, like_user_id<br>
users - id, name, email ...,<br>
friends - id, user_id, friend_id, status<br>

您需要在此处使用将喜欢的用户与好友用户合并。执行此操作后，您可以创建一个人工列

friend

，在friend查询中填充

1

，在like查询中填充

0

。稍后您可以按该列订购

SELECT
    friends.user_id,
    1 as friend,
    users.*
FROM
    friends
    JOIN users ON users.id = friends.friend_user_id
    UNION SELECT
            likes.user_id,
            0 as friend,
            users_liked.*
        FROM
            likes
            JOIN users as users_liked ON likes.like_user_id = users_liked.id
WHERE
    user_id = '$userId'
ORDER BY friend DESC, id ASC

---

这将返回所有好友的列表，然后是所有喜欢的用户的列表。

是的，应该可以！添加一些示例表数据和预期结果-作为格式化文本，而不是图像。同时显示您当前的查询尝试。

SELECT
    friends.user_id,
    1 as friend,
    users.*
FROM
    friends
    JOIN users ON users.id = friends.friend_user_id
    UNION SELECT
            likes.user_id,
            0 as friend,
            users_liked.*
        FROM
            likes
            JOIN users as users_liked ON likes.like_user_id = users_liked.id
WHERE
    user_id = '$userId'
ORDER BY friend DESC, id ASC