Messaging System with PHP/MySQL

Question

Hi I\'m trying to make a messaging system with php and mysql.

The mysql table is simple: id sender receiver text timestamp

I\'m trying to make the messaging some

Answer 1

DESC for receive New row's . AND ASC or NOT set, Default is ASC:

   (SELECT * FROM messages WHERE receiver = 13 OR sender = 13 GROUP BY receiver,sender ORDER BY id DESC)

AND SET LIMIT 1 ,1 AFTER ORDER BY
i think you need it
(receiver = 13 AND sender = 'usersender id' ) OR (receiver ='usersender id' AND sender = 13 ) Try it!