Tobias Schlitt has posted about this year's FrOSCon conference happening August 23rd and 24th near Bonn.
One of the most amazing German OS events is right in front of the door. Since the organizers of the FrOSCon expect a massive ammount of visitors, they ask everyone kindly to register on their website. If you did not do so, yet, take your heels and do so!
He mentions some of the "PHP VIP" that'll be there including Marcus Boerger, Derick Rethans and Rasmus Lerdorf as well as the dedicated PHP track they'll have this year. You can find out more information about the conference from the PHP@FrOSCon website.