Duplicate products: how does it work?

[musicmaster]

"Duplicate Products" is a rather slow function, specially if you need dozens of copies. So I have been experimenting if I could create a PHP function that directs the PS code to do just that.

 

What I did was that I made a copy of index.php that I called duplo.php and then I changed the code inside it so that it didn't need arguments on the command line. So the beginning of the file looks as follows:

 

define('_PS_ADMIN_DIR_', getcwd());
define('PS_ADMIN_DIR', _PS_ADMIN_DIR_); // Retro-compatibility
$_GET['id_product'] = '118';  /* my product that I want to be copied */
$_GET['id_category'] = '13';  /* the category in which I want it copied */
$_GET['tab'] = 'AdminCatalog';
$_GET['token'] = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; /* the code as it appeared in the url */
$_GET['duplicateproduct'] = '';
$_POST = $_GET;
include(PS_ADMIN_DIR.'/../config/config.inc.php');
include(PS_ADMIN_DIR.'/functions.php');
include(PS_ADMIN_DIR.'/header.inc.php');

 

The amazing thing when I called this file in my browser was that it made 21 copies of my product. I am puzzled and I wonder if there are other people who have been experimenting too and know some things that I don't know.

[musicmaster]

I thought that one possibility is that this is caused by the redirect. Normally duplicate does a redirect after it has duplicated an item. It goes than to another instance of index.php that has slightly different arguments. But if I use my filename "duplo.php" those arguments don't work and the same duplication is repeated. It probably times out on Opera (my browser) after 21 times.