Custom add to cart button to add multiple product into cart with quantity :woocommerce

Question

I want to create custom add to cart button to add my 3 product into cart with 2 quantity for each..

For add three product into cart I have done using like this:

Answer 1

You need to pass quantity in query string like:

?post_type=product&add-to-cart=100&quantity=2

I have modify you code

I think this will solve your problem.