codeigniter - Creating and sending parameters Between Controller and View -

I am making a start in CodeIgniter, I am trying to understand the MVC pattern, which is getting a bit complicated Because I'm moving forward with CodeIgniter, this is my controller Looks like hello.php:

  & lt ;? Php square extends Hello CI_Controller {var $ name; Var $ color; Function Hello () {Origin: Controller (); $ This- & gt; Name = 'laryai'; $ This- & gt; Color = 'red'; } Show show () {$ data ['name'] = $ this- & gt; Name; $ Data ['color'] = $ this- & gt; Colour; $ This- & gt; Load-> View ('show_message', $ data); }}? & Gt;   
 view ie show_message.php  
  & lt; P align = "center" & gt; Hello & lt; Font color = "& lt;? = $ Color? & Gt; & Lt ;? = $ Name & gt; & Lt; / Font & gt; .. !!!! & Lt; / P & gt;   
 When I run this script, this error returns  
  Fatal error: call the undefined method CI_Controller :: Controller () in C: \ xampp \ Htdocs \ CodeIgniter \ application \ controllers \ hello.php on line 8   
 PS I am using CodeIgniter version 2.0 so that I change the class name to CI_Controller  < / Div> 
 
 
  function hello () {parent: controller (); $ This- & gt; Name = 'laryai'; $ This- & gt; Color = 'red'; }   
 Change your constructor code with this  
  function __construct () {origin: __ creation (); $ This- & gt; Name = 'laryai'; $ This- & gt; Color = 'red'; }