Common problems and solutions encountered when developing mutual attention functions in PHP

With the rapid development of social media, the mutual follow function has become one of the necessary functions for many websites and applications. In the PHP development process, the mutual follow function will inevitably face some common problems. This article will introduce some common problems related to the mutual attention function of PHP development and propose corresponding solutions.

Question 1: How to design the database table structure to support the mutual follow function?

Solution: In the database, you can design a table to store the relationship between users. This table can contain two fields, representing the user IDs of followers and followers. Through this table, we can easily query who a user follows and who is followed.

Question 2: How to realize the functional logic of mutual attention?

Solution: The mutual following function can be achieved by inserting a following relationship into the database table. When user A follows user B, a record can be inserted into the relationship table to indicate that user A follows user B. When user B also follows user A, insert another record to indicate that user B also follows user A.

Question 3: How to cancel the mutual follow function?

Solution: You can cancel mutual attention by deleting the corresponding records in the relationship table. When user A unfollows user B, the record of user A following user B can be deleted from the relationship table. In the same way, when user B unfollows user A, the record of user A following user B will also be deleted.

Question 4: How to update the number of fans and followers in real time?

Solution: The number of fans and followers of the user can be updated in time during the following and unfollowing operations. When user A follows user B, you can first query the number of followers of user B, then add one to the number of followers and update it to user B's data. Similarly, when user B is unfollowed by user A, user B's following number should also be reduced by one and updated again.

Question 5: How to optimize the performance of the mutual attention function?

Solution: The performance of the mutual attention function can be improved by adding database indexes. Indexes can be added to the follower and followee fields in the relationship table to speed up query and delete operations. In addition, you can further optimize performance by setting up a database connection pool, using cache, etc.

Question 6: How to implement real-time push of mutual follow function?

Solution: Real-time push of the mutual attention function can be achieved by using technologies such as WebSocket or long polling. When user A follows user B, a push message can be sent to user B to notify user B of new fans. This can improve user experience and increase user activity.

To sum up, when developing the mutual follow function in PHP, you need to design the database table structure, implement the logic of following and unfollowing, handle the real-time update of the number of fans and followers, optimize performance, and implement real-time push functions. By solving the above common problems, we can successfully develop a mutual attention function with complete functions and excellent performance. I hope this article can be helpful to developers who develop mutual follow functions in PHP.

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