Php 如果特定产品在购物车中，则在购物车页面中显示通知

如何使下面的函数检查多个产品id而不是一个id，如何将其转换为数组

add_action( 'woocommerce_before_cart', 'bbloomer_find_product_in_cart' );
    
function bbloomer_find_product_in_cart() {
  
   $product_id = 17285;
  
   $product_cart_id = WC()->cart->generate_cart_id( $product_id );
   $in_cart = WC()->cart->find_product_in_cart( $product_cart_id );
  
   if ( $in_cart ) {
  
      $notice = 'DON\'t Forget to Apply the discount coupon code you received to complete purchasing with the discounted price';
      wc_print_notice( $notice, 'notice' );
  
   }
  
}

我们尝试了

$product_id=array（“17285”、“17302”）//但它不起作用

我们也试过了，但也不起作用

add_filter( 'woocommerce_before_cart', 'ts_woocommerce_quantity_selected_numbe', 10, 2 );
function ts_woocommerce_quantity_selected_numbe( $product ) {
    $product_ids = array("15757", "15758"); // Here the array of product Ids

    if ( in_array( $product->get_id(), $product_ids ) ) {
        // In cart
        if ( ! is_cart() ) {
            $notice = 'DON\'t Forget to Apply the discount coupon code you received to complete purchasing with the discounted price';
      wc_print_notice( $notice, 'notice' );
        } 
    }
}

对于购物车中的产品id数组，请使用此代码

$array_product_ids = array();

foreach( WC()->cart->get_cart() as $cart_item ){
    $product_id = $cart_item['product_id'];
    $array_product_ids =   $product_id
}
print_r($array_product_ids);    // here you find all product id which are in the cart. 

对于购物车中的产品id数组，请使用此代码

$array_product_ids = array();

foreach( WC()->cart->get_cart() as $cart_item ){
    $product_id = $cart_item['product_id'];
    $array_product_ids =   $product_id
}
print_r($array_product_ids);    // here you find all product id which are in the cart. 

要检查购物车项目是否有一个或多个产品标识，并显示通知，请改用：

add_action( 'woocommerce_before_cart', 'found_product_in_cart_display_message' );
function found_product_in_cart_display_message() {
    $product_ids = array(17285, 17302); // Array or product ids

    // Loop through cart items
    foreach ( WC()->cart->get_cart() as $item ) {
        if ( array_intersect( $product_ids, array($item['product_id'], $item['variation_id']) ) ) {
            // Display a notice
            wc_print_notice( __("Don't forget to apply the discount coupon code you received to complete purchasing with the discounted price."), 'notice' );
            break; // Stop the loop
        }
    }
}

代码进入活动子主题（或活动主题）的functions.php文件。已测试并正常工作。
要检查购物车项目是否有一个或多个产品ID，并显示通知，请改用：

add_action( 'woocommerce_before_cart', 'found_product_in_cart_display_message' );
function found_product_in_cart_display_message() {
    $product_ids = array(17285, 17302); // Array or product ids

    // Loop through cart items
    foreach ( WC()->cart->get_cart() as $item ) {
        if ( array_intersect( $product_ids, array($item['product_id'], $item['variation_id']) ) ) {
            // Display a notice
            wc_print_notice( __("Don't forget to apply the discount coupon code you received to complete purchasing with the discounted price."), 'notice' );
            break; // Stop the loop
        }
    }
}

代码进入活动子主题（或活动主题）的functions.php文件。经过测试且有效。
我们如何将其应用到示例中。。之后如何打印消息添加过滤器（'woocommerce'u before\u cart'，'ts\u woocommerce\u quantity\u selected\u number'，10，2）；函数ts_\u商业_数量_所选_编号（$product）{$array_product_id=array（）；foreach（WC（）->cart->get_cart（）作为$cart_项目）{$product_id=$cart_项目['product_id']；$array_product_id=$product_id}如果（在数组（$product->get_id（），$array_product_id（））中）//{//your notice here}}}}}}我们如何将其应用到我们的示例中..之后如何打印一个messageadd_过滤器（'woocommerce_before_cart'，'ts_woocommerce_quantity_selected_number'，10，2）；函数ts_woocommerce_quantity_selected_number（$product）{$array_product_id=array（）；foreach（WC（）->cart->get_cart（）作为$cart_item）{$product_id=$cart_item['product_id']；$array_product_id=$product_id}如果（在_数组中（$product->get_id（），$array_product_id））{//在购物车中如果（！is_cart（））{//您在这里的通知}}