Problem with arrays

[eluser]mddd[/eluser]
You should read up on variable scopes. A variable that you declare inside a function only exists in that function.
If you want to access it from outside the function you need to store the variable somehere else. A logical place is to make it a class property (that is, a variable that is common to all functions in the class).

Code:

<?php
class Product extends Controller
{

    var $products;

    function Product()
    {
        parent::Controller();
    }

.....

    function some_function()
    {
        // to get to the products variable, use $this->products
        $this->products = 'somevalue';
    }

    function other_function()
    {
        // you can still use the variable here, even though we're in another function
        print_r($this->products);
    }
}