If you're in the area of The Netherlands and you're into PHP, consider yourself lucky - just look at all the events that Ivo Jansch mentions in one of his more recent blog entries:

PHP is still growing in The Netherlands (according to nexen.net, 46% of Dutch domains use PHP). A good indicator of PHP's growth is the number of conferences and other events that are organized this year. [...] This year alone, there are already 6 major (>50) events; 3 done, 3 to go.

Some of the events (like Dutch Joomla Days and the PHP Business Seminar) have already passed but there's still a chance to get in on a few others like Kings of Code and the Dutch PHP Conference.