shopping class problem

Yii 2.0 General Discussions
1

I am trying to use this simple class (from the source code) http://www.peachpit.com/articles/article.aspx?p=1962481

I put the source code at vendors/myclass folder giving the namespace mycart.

But when I am trying to use at controller,I have the error Class

How can I use this class properly?


 $cart=new \mycart\ShoppingCart();

     $cart->isEmpty();
2

http://www.yiiframework.com/doc-2.0/guide-tutorial-yii-integration.html#using-downloaded-libs

3

I set


 Yii::$classMap['dimis\mycart\ShoppingCart'] ='@vendor/mycart/ShoppingCart.php';

and it is ok

But now there is the error Interface ‘dimis\mycart\Iterator’ not found


class ShoppingCart     implements Iterator, Countable

I have to delete


implements Iterator, Countable

?

4

I am trying to create a alias for these classes,but it is not working.How can I fix it?

The files are in vendor\myclass and they have the namespace dimis\mycart

I have this error The configuration for the "aliases" component must contain a "class" element




'components' => [.....

'aliases' => [

        '@dimis\mycart' => '@vendor/mycart',

       // 'dimis\mycart\Item' => '@vendor/mycart/item.php',

    ],

[edit]It seems that I solve it,I put the code outside the ‘components’ area