I am learning cakePHP 1.26.
I got a Controller which got two functions.
I was thinking to make $myVariable a global variable so that both functions in the controllers can share it, but I am not sure if this is the best way to declare a global variable in cakePHP:

class TestingController extends AppController {  
     var $myVariable="hi there";

    function hello(){
     if($newUser){echo $myVariable;}
      }

     function world(){
      if($newUser=="old"){$myVariable="hi my friends";}
      }
 }

Eğer yapabilirsen yardımcı olun.

Düzenlenen nedeni:

, Aircule Merhaba

Ben kodu biraz değişmiş ve öneri takip, ancak myVariable değeri hiç değişmedi değildi adres:

class TestingController extends AppController {  
         var $myVariable="hi there";

        function hello(){
         echo $this->myVariable;
          }

         function world(){
          $this->myVariable="hi my friends";
          }

         function whatValue(){
         echo $this->myVariable;  // still output "hi there"
        }

     }