How does PHPCI framework remove cache?

How does the PHPCI framework remove the cache and how to clear the cache to achieve timely results? for example, the function public & nbsp; function & nbsp; show () {& nbsp; echo & nbsp; '000000';} // & nbsp; page Display & nbsp; how to remove cache in php ci framework
How to clear cache for timely effect
For example:
Functions in the class
Public function show (){
Echo '20140901 ';
}
// 111 is displayed on the page.
But after I modify

Public function show (){
Echo '20140901 ';
}
// The page also displays 111

There should be a cache. I have read the configuration file and the cache is also disabled. Why? Share:
------ Solution --------------------
The browser cache is removed.