Hey guys,

I want to add 5 items to the end of this multidimensional array but I’m not sure what the numbers mean.

```
$map = array(
'product_id' => array(0,0),
'name' => array(1,0),
'model' => array(2,0),
'meta_description' => array(1,2),
'meta_keyword' => array(1,3),
'meta_title' => array(17,0),
'description' => array(16,0),
'tag' => array(1,4),
'sku' => array(3,0),
'upc' => array(1,6),
'ean' => array(1,7),
'jan' => array(1,8),
'isbn' => array(1,9),
'mpn' => array(1,10),
'location' => array(1,11),
'price' => array(14,0),
'tax_class' => array(1,12),
'quantity' => array(13,0),
'minimum' => array(1,13),
'subtract' => array(1,14),
'stock_status' => array(1,15),
'shipping' => array(1,16),
'keyword' => array(1,17),
'image' => array(6,0),
'date_available' => array(1,18),
'length' => array(7,0),
'width' => array(8,0),
'height' => array(9,0),
'length_class' => array(1,19),
'weight' => array(10,0),
'weight_class' => array(1,20),
'status' => array(5,0),
'sort_order' => array(1,21),
'manufacturer' => array(11,0),
'categories' => array(4,0),
'stores' => array(12,0),
'downloads' => array(1,23),
'filters' => array(1,24),
'recurrings' => array(1,25),
'related' => array(15,0),
'attribute' => array(4,1),
'option' => array(4,3),
'discount' => array(4,9),
'special' => array(4,15),
'product_image' => array(4,20),
'points' => array(4,23),
'reward_points' => array(5,22),
'design' => array(4,24),
);
```

Extra Items I would like to add:

```
'country_of_origin' => array( ? ),
'release_date' => aarray( ? ),
'grading' => array( ? ),
'media_type' => array( ? ),
'gradingcondition' => array( ? ),
'genre_name' => array( ? ),
```

SOURCE: https://www.dropbox.com/s/aurs1k15rmekw3c/excelmusicstack_product.php?dl=0

Any help would be much appreciated