add to cart

add_action( 'template_redirect', 'quadlayers_add_to_cart_function' );

function quadlayers_add_to_cart_function () {

    $product_id = 1326;

    if ( WC()->cart->get_cart_contents_count() == 0 ) {

        WC()->cart->add_to_cart( $product_id );

    }

}

function remove_loop_button(){
 if (in_array( 10, $product->category_ids))
  remove_action(‘woocommerce_after_shop_loop_item’,‘woocommerce_template_loop_add_to_cart’, 10);
}
add_action(‘init’,’remove_loop_button’);

add_action(‘woocommerce_after_shop_loop_item’,’replace_add_to_cart’);
function replace_add_to_cart() {
global $product;
$link = $product->get_permalink();
echo ‘<a href=”‘.esc_attr($link).'”>Try Now</a>’;
}