Question

I want to declare a private variable inside class which I want to access in all of my class without passing it to another function using parameter. I have following scenario

class One extends CI_Controller {
    private $name;
    public function index () {
        $name = $this->input->post('name');
        $this->validate();
    }

    public function validate() {
        echo $name;
    }
}

But my above $name variable gives me an error saying variable $name is undefined.

Is above possible in PHP if yes then how?

Answer 1

Just using $name is a local variable in the scope of the function only.

If you use $this->name, you can access the private property of your controller.

See Properties^Docs.