Php Framework一次支持多个数据库实例

is theire any php Framework which will support multiple database instance @ single time.?????

Yes, Zend Framework

http://framework.zend.com/manual/en/zend.application.available-resources.html#zend.application.available-resources.multidb

I'd say it's safe to assume there are others. From memory, Doctrine supports multiple connections out-of-the-box so you can probably include Symfony.