Add custom woocommerce “add to cart” button with display variation in dropdown & product quantity on single-product.php page template in woocommerce
add_action( 'woocommerce_before_add_to_cart_form', 'woo_display_variation_dropdown_on_shop_page' );
function woo_display_variation_dropdown_on_shop_page() {
global $product;
if( $product->is_type( 'variable' )) {
$attribute_keys = array_keys( $product->get_variation_attributes() );
?>
%s',
esc_url( $product->add_to_cart_url() ),
esc_attr( isset( $quantity ) ? $quantity : 1 ),
esc_attr( $product->id ),
esc_attr( $product->get_sku() ),
esc_attr( isset( $class ) ? $class : 'button' ),
esc_html( $product->add_to_cart_text() )
);
}
} ?>