I'm trying to find a PHPframework to build small, multilingual sites.
Do you know a PHP framework with support for:
and if you know cms with those features put it too.
Symfony 1.4.x comes with all this built it, except for searching which can be implemented using Lucen.
It has great documentation that walks you through the entire process of making a real and useful website using all the features you've mentioned. See it here.
I am also searching for such a Framework. I found one called YII. It makes use of SQLITE by default. Very easy to setup. But I am not sure if it has all the features that you are looking for.
Link to Site: http://www.yiiframework.com/download/
Detailed Documentation is also available fro reference.