This post explains you how to design the Facebook Style message conversation system using PHP and MySQL. I have been working with messaging system at labs.9lessons.info, take a quick look at this post, how I have implemented database design tables and SQL queries. Login at labs.9lessons.info and try this live demo.
![Message Conversation Database Design.](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPXCe1KAkOsVf5vBfxrNq9ScbVoJzCV78EBnG2W7WODaPwz88MkDYTL_a5B3JWqGjvXH6DZkPXVzyabci2YE4QNRrZ4lZYn9XsLIGV_MfXctj7QsEefd7gjlf-dLrMcy4WxRjpqqLpdTD1/s550/users.png)
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