On the ThinkPHP blog Thorsten Rinne has posted an announcement about the opening of the Call for Papers for this year's International PHP Conference.

The Call for Papers for the International PHP Conference 2009 - Spring Edition has just opened! For more details, click here. The conference will take place on May 25th, 26th and 27th in Germany's capital city. See you in Berlin!

The deadline for putting your paper/suggestion in is coming up soon - February 20th, 2009. The two suggested talk times are 45 minutes (ketnote) and 60 minutes (regular session). There will also be 6 different 90 minute workshops.