CodeIgniter – MVC Framework

CodeIgniter – MVC Framework

CodeIgniter  is  based  on  the  Model-View-Controller  (MVC)  development  pattern. MVC   is   a   software   approach   that   separates   application   logic   from   presentation.   In practice, it permits your  web pages to contain minimal  scripting since the presentation is separate from the PHP scripting.

        Figure: CodeIgniter – MVC Framework

·The  Model  represents  your  data  structures.  Typically,  your  model  classes  will contain  functions  that  help  you  retrieve,  insert  and  update  information  in  your database.

·The View is information that is being presented to a user. A View  will normally be a web page, but in  CodeIgniter, a view can also be a page fragment like a header or footer. It can also be an RSS page, or any other type of “page”.

·The  Controller  serves  as  an  intermediary  between  the  Model,  the  View,  and  any other resources needed to process the HTTP request and generate a web page.