Class variables messing up [closed]

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consider this code :

Class Controller_xyz extends Controller
{
    protected $res=' ';
    public function action_reg()
    {
         $this->res="bla开发者_C百科h";
         $x="blah"
         echo $this->res;
         echo $x;
    }
}

output :

b
blah

why am I not able to change class variable?

---

You made a typo @

$x="blah" (missing ;)

Working code: http://ideone.com/jmICU

^{(Controller stripped out)}

Please let me know if my answer has worked.

---

It is NOT class variable but instance variable if you define/access it this way.

Most of the time in PHP, i forget including $ in variable name. Try as

$this->$res = "blah";