Using checkboxes for variations in WooCommerce to allow multiple choice
You can do it this way:
1) Edit you content-single-product.php:
2) Get product by $product = wc_get_product( $productId )
3) Check if $product->product_type == "variable"
4) Get all variants of current product and list it to checkboxes:
$variations = $product->get_available_variations();foreach ( $variations as $variation ) {$variationId = $variation['variation_id'];echo '<input type="checkbox" name="variations[]" value="' . $variationId . '" />}echo '<input type="checkbox" name="product_id" value="' . $product->ID . '" />5) After that you can process $_POST and add variations to cart programatically:
if ( !empty( $_POST['variations'] ) ) {$productId = $_POST['product_id'];$qty = 1;$buyVariations = $_POST['variations'];foreach ( $buyVariations as $variationId ) {WC()->cart->add_to_cart( $productId, $qty, $variationId );}}6) Sanitization, validation and status messaging is on you, but this process should works.