As long as the basic framework: MVC, directory structure, URL parsing, database interface, caching mechanism and so on.
Do not class library! The framework core is clearly separated from the Extended class library.
Reply content:
Silex
let you turn symfony
more convenient
Lumen
let you turn laravel
more convenient
When you feel that a lightweight frame is no longer sufficient, it is important to be able to smooth over. CodeIgniter is in accordance with the requirements of the Lord no one talked about, Symfony2 and Laravel.
I mean, I really don't understand .... The CodeIgniter is absolutely lightweight and is used for a few days. You can try the codeigniter,php frame of a very light ~ now ThinkPHP2.0 more than the version basically, he has a class library, but it is not necessary, by default, there is no extension class library. To use some classes, it is good to load yii with import, but Chinese support is not strong. CI is also good, thinkphp is characterized by the Chinese language of the tutorial also has to help the document quite full! Many ... Lumen is more suitable for study. Take it apart.
After the study, you can get started Laravel building large projects. My answer to this question should be able to help you: http://www. zhihu.com/question/1961 1667
Compared to slim and lightvc,ci can be considered to be huge. Recommended CI
I use CI to write the website:/ http bbcash.com