Adding to basket automaticcally

[com2]

I try to create one URL that would add a product automatically to the cart. I look at the content of the page and send the same what a form submittion would do. The id[4] and id[7] are from two pulldown boxes to choose the options of this product:

 

=1&id[7]=29]http://shop/product_info.php?products_id=3...d[4]=1&id[7]=29

 

Problem is that the shopping_cart comes up without the product added and with the following error at the left top corner, just above the table where the cathegories appear:

 

Warning: Wrong datatype for second argument in call to in_array in c:localpathshopincludesboxescategories.php on line 31

 

Warning: Wrong datatype for second argument in call to in_array in c:localpathshopincludesboxescategories.php on line 38

 

What am I doing wrong?

[Guest]

try looking at the call for the buy now button

[com2]

I did, but it doesn't give me a clue about the options. When there are options in a product, the buy now button will NOT add the product to the cart, but gives you the choice of options and sends me to product_info.php?products_id=32.

 

What I want is make the choice for the client automatically. I will have a look at the code though, to see what it does.