将产品添加到购物车之前需要Woocommerce复选框

add_action( 'woocommerce_before_add_to_cart_button', 'add_custom_product_options' );

function add_custom_product_options() {
    global $product;

    echo '<div class="custom-product-options">';

    // 颜色选项
    woocommerce_form_field( 'color', array(
        'type'          => 'checkbox',
        'class'         => array('form-row-wide'),
        'label'         => __('选择颜色'),
        'options'       => array(
            'red'    => __('红色'),
            'blue'   => __('蓝色'),
            'green'  => __('绿色'),
        ),
    ), $product->get_meta( 'color' ) );

    // 尺寸选项
    woocommerce_form_field( 'size', array(
        'type'          => 'checkbox',
        'class'         => array('form-row-wide'),
        'label'         => __('选择尺寸'),
        'options'       => array(
            'small'  => __('小号'),
            'medium' => __('中号'),
            'large'  => __('大号'),
        ),
    ), $product->get_meta( 'size' ) );

    echo '</div>';
}