The speaker's list for this year's International PHP Conference has been posted (via this article on the International PHP Magazine website).

Included in the list are notables like:

• Lukas Smith - a workshop on common challenges when making database-driven applications
• Hans Lellelid - managing your software lifecycle with Phing
• Sebastian Bergmann - a workflow engine for PHP5
• Zak Greant - a look at free software
• Derick Rethans - test-driven development and PHP's dirty secrets

You can get full details on the conference and how to register for the event from the official conference website.