将产品名称添加到WooCommerce中的电子邮件主题

Question

如何在此电子邮件的主题行中添加产品名称。是否有电子邮件主题行的可用过滤器列表？我希望能够在不必编写自定义php的情况下完成此操作。我想做这样的事情：

已完成订单 - [{product_name}]（{order_number}） - {order_date}下面的代码尝试并添加到functions.php但主题未显示：

add_filter( 'woocommerce_email_subject_customer_completed_order', 'customer_completed_order_subject', 10, 2 ); 
function customer_completed_order_subject($string,$order){
$fname = $order->billing_first_name;
$lanme = $order->billing_last_name;
$email = $order->billing_email;
$items = $order->get_items();
foreach($items as $meta_key => $items){
    $product_name = $items['name'];
    $product_id = $items['product_id'];
}
$subject_line = get_field('email_subject',$product_id);
$subject_line = str_replace('{product}',$product_name,$subject_line);
$subject_line = str_replace('{biller_fname}',$fname,$subject_line);
$subject_line = str_replace('{biller_lastname}',$lanme,$subject_line);
$subject_line = str_replace('{biller_email}',$email,$subject_line);
$subject_line = str_replace('{blog_name}',get_bloginfo('name'),$subject_line);
return $subject_line;
}

Answer 1

您没有使用正确的钩子并且有错误...而是使用以下内容：

add_filter( 'woocommerce_email_format_string' , 'add_custom_email_format_string', 10, 2 );
function add_custom_email_format_string( $string, $email ) {
    $order       = $email->object; // Get the instance of the WC_Order OBJECT
    $order_items = $order->get_items(); // Get Order items
    $order_item  = reset($order_items); // Get the irst order item

    // Replace placeholders with their respective values
    $string = str_replace( '{biller_fname}', $order->billing_first_name(), $string );
    $string = str_replace( '{biller_lname}', $order->billing_last_name(), $string );
    $string = str_replace( '{biller_email}', $order->billing_email(), $string );
    $string = str_replace( '{product_name}', $order_item->get_name(), $string );
    $string = str_replace( '{blog_name}', get_bloginfo('name'), $string );

    return $string; 
}

代码位于活动子主题（或活动主题）的function.php文件中。经过测试和工作。

注意：订单可以包含许多商品，因此产品名称很多。在上面的代码中，我只保留了第一个产品名称......

如果要处理多个产品名称，您将使用：

add_filter( 'woocommerce_email_format_string' , 'add_custom_email_format_string', 10, 2 );
function add_custom_email_format_string( $string, $email ) {
    $order          = $email->object; // Get the instance of the WC_Order OBJECT
    $products_names = array();

    // Loop through order items
    foreach( $order->get_items() as $item ) {
        $products_names[] = $item->get_name();
    };

    // Replace placeholders with their respective values
    $string = str_replace( '{biller_fname}', $order->billing_first_name(), $string );
    $string = str_replace( '{biller_lname}', $order->billing_last_name(), $string );
    $string = str_replace( '{biller_email}', $order->billing_email(), $string );
    $string = str_replace( '{product_name}', implode(' ', $products_names), $string );
    $string = str_replace( '{blog_name}', get_bloginfo('name'), $string );

    return $string;
}

代码位于活动子主题（或活动主题）的function.php文件中。经过测试和工作。

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