如何检查可变产品 ID 是否在 woocommerce 购物车中？

Question

所以我在 php 中写了这个过于复杂的代码（因为我几天前才开始使用 php），当某些产品在购物车中时，它应该简单地在结帐页面上添加一个自定义复选框，但由于某种原因它只适用于简单的产品我需要它用于可变产品。我试过使用变体 ID 和产品 ID。你能告诉我哪里错了吗？add_action( 'woocommerce_review_order_before_submit', 'webroom_check_if_product_in_cart' );function webroom_check_if_product_in_cart() {    $product_id1 = 9145; // CHANGE THIS WITH YOUR PRODUCT ID 9145      scratch-8974    $product_id2 = 9151; // CHANGE THIS WITH YOUR PRODUCT ID    $product_id3 = 9152; // CHANGE THIS WITH YOUR PRODUCT ID    $product_id4 = 9153; // CHANGE THIS WITH YOUR PRODUCT ID    $product_id5 = 9155; // CHANGE THIS WITH YOUR PRODUCT ID    $product_id6 = 9156; // CHANGE THIS WITH YOUR PRODUCT ID    $product_cart_id1 = WC()->cart->generate_cart_id( $product_id1 );    $product_cart_id2 = WC()->cart->generate_cart_id( $product_id2 );    $product_cart_id3 = WC()->cart->generate_cart_id( $product_id3 );    $product_cart_id4 = WC()->cart->generate_cart_id( $product_id4 );    $product_cart_id5 = WC()->cart->generate_cart_id( $product_id5 );    $product_cart_id6 = WC()->cart->generate_cart_id( $product_id6 );    $in_cart1 = WC()->cart->find_product_in_cart( $product_cart_id1 );    $in_cart2 = WC()->cart->find_product_in_cart( $product_cart_id2 );    $in_cart3 = WC()->cart->find_product_in_cart( $product_cart_id3 );    $in_cart4 = WC()->cart->find_product_in_cart( $product_cart_id4 );    $in_cart5 = WC()->cart->find_product_in_cart( $product_cart_id5 );    $in_cart6 = WC()->cart->find_product_in_cart( $product_cart_id6 );    if ( $in_cart1 || $in_cart2 || $in_cart3 || $in_cart4 || $in_cart5 || $in_cart6) {        echo add_my_checkout_tickbox();   }}

Answer 1

这是代码的最终版本，在阅读了上面“7uc1f3r”提供的参考资料之后。谢谢您的帮助。

add_action( 'woocommerce_review_order_before_submit', 'add_custom_checkbox' );

function add_custom_checkbox() {

    ## ----- CHECK IF CERTAIN PRODUCTS (COULD ALSO BE VARIABLE PRODUCTS) ARE IN CART ----- ##

    $product_ids = array (9145, 9151, 9152, 9153, 9155, 9156); // Search for this products (PARENT ID)

    // Loop though cart items searching for the defined products

    foreach( WC()->cart->get_cart() as $cart_item ) {

        // Product id

        $product_id = $cart_item['product_id'];

        // Display checkbox if product found in cart

        if ( in_array( $product_id, $product_ids) ) {

            echo add_my_checkout_tickbox();

        }

    }

}