1. How Web Database Architectures Work CPS181s April 8, 2003

2. search.html

4. Web Database Architectures A user’s Web browser issues an HTTP request. The Web Server receives the request for results.php and passes it to the PHP engine for processing The PHP engine opens a connection to the MySQL DBMS and sends the query. The MySQL DBMS process the query and sends the results back to the PHP engine. The PHP engine formats the results in HTML and sends it to the Web Server The Web Servers passes the HTML page back to the user’s browser

5. results.php

6. results.php (cont.)

7. Search Results

8. Write to Database

9. Write to Database HTML

10. insert_book.php

11. Access Log

12. Access Log (cont.)