In a new post to his blog Daniel Krook mentions a series he, Mark Nusekabel and Yan Li Mu wrote on migrating a PHP application over from MySQL to DB2 as a backend.

IBM developerWorks has just published the first article in a series that Mark Nusekabel, Yan Li Mu and I wrote about our experience migrating a large PHP and MySQL application to DB2. In the four part series we look at preparation, switching databases, porting code, and finally deploying the application. This first installment covers the steps to plan and resources to consult when starting a migration project.

He gives links to a few other helpful resources if you're looking to make the move to DB2 like a redbook, a PHP developer's guide and an Amazon EC2 instance pre-configuured with IBM software.