2) Yes, I use the C version of PHP for my production and in-company test deployment. About speed I find Quercus really fast, but I never tested it with real load, and as I already have tomcat in my production machines I could not use the compiling version. So I didn’t even took the time to check the open source version for the performance as reading around it should not be better than original php+eaccelerator if I cannot enable compilation.

3) no

4) Main issue is the rewrite rules. I use the http://tuckey.org/urlrewrite/ filter but it’s a waste of time to have to rewrite the rules from .htaccess format to urlrewrite format. Recent urlrewrite does support a limited htaccess style directive set, but it is not enough for drupal defaults.

5) no

6) Quercus open source inside tomcat.

I think that if quercus compiled is really faster than original php you should make it free, so that a lot more people will use it in production and you will get back a lot of bug reports/fixes and a lot of publicity about the improvements.

I know quercus since its beginning (I even submitted patches in past) and I say no one I talked about in my industry was aware of the existance of a php interpreter written in JAVA. _NO_ _ONE_. Every time I talk about it people is very positively surprised!

Personal resin is not an answer: we want “compiling quercus” in tomcat, and for free ;-), and the voice about how cool is caucho with automatically spread around.