Roland H=E4der=22 r.haeder@will-hier-weg.de
I'm planing to write and release freely a framwork written in PHP with abstract database access [...] I gues the LGPL might be a good idea? Or the always-good GPL?
Both of those seem good ideas. As long as you use a licence that is known to be a free software licence and generic (the PHP licence is not generic), then I think many people will be happy.
Beyond that, which you choose is a tactical decision based on: * your beliefs * the preferences of your collaborators * the licences used by any competitors and more besides.
Good luck! (Oh and get legal advice if you need it. IANAL like http://people.debian.org/~mjr/legal/ says.)