Help! With application_top case...

[Rwfresh]

Hi all,

 

I am pretty new with php and OSC. I am looking for someone who can explain what is happening line by line in the following case taken from application_top.php:

 

case 'add_product' : if (ereg('^[0-9]+$', $HTTP_POST_VARS['products_id'])) {

$cart->add_cart($HTTP_POST_VARS['products_id'], $cart->get_quantity($HTTP_POST_VARS['products_id'])+($HTTP_POST_VARS['cart_quantity']), $HTTP_POST_VARS['id'], true);

}

tep_redirect(tep_href_link($goto, tep_get_all_get_params($parameters), 'NONSSL'));

break;

 

The more detailed the better but any help is appreciated.

 

Specifically i am trying to have the add_product procedure take into consideration some other pricing i have added that cannot be handled by the Options functionality. THANK YOU for any help!

 

rw