Php Woocommerce按用户订单总数更改角色

我在php实现自动改变用户角色时遇到了一个问题。 所以我有了自定义角色

dovclient

。首次用户订购获得角色

客户

我需要改变用户角色，如果他购买的产品总计500美元

所以我有一个函数

function wpa_120656_convert_paying_customer( $order_id ) {

  $order = new WC_Order( $order_id );

    $user_id = $order->user_id;

    $customer_orders = get_posts( array(
      'numberposts' => -1,
        'meta_key'    => '_customer_user',
      'meta_value'  => $user_id,
        'post_type'   => 'shop_order',
    ) );

    $total = 0;
    foreach ( $customer_orders as $customer_order ) {
        $order = wc_get_order( $customer_order );
        $total += $order->get_total();
    }

    return $total;

    if ( $total > 500 ) {
       update_user_meta( $order->user_id, 'paying_customer', 1 );
        $user = new WP_User( $order->user_id );


        $user->remove_role( 'customer' ); 


       $user->add_role( 'dovclient10' );
    }
}
add_action( 'woocommerce_order_status_completed', 'wpa_120656_convert_paying_customer' );

我知道，
$customer\u orders
正在计数，我通过计数订单使函数工作。我的意思是如果例中的
$customer\u orders>2
，那么就改变角色

但总的订单价格，我有一个问题。角色不变。我不知道为什么。问题可能出在
foreach

请帮帮我
 惊人的帮助！0... 好啊我已经做到了

function wpa_120656_convert_paying_customer( $order_id ) {

  $order = new WC_Order( $order_id );

    $user_id = $order->user_id;

    $customer_orders = get_posts( array(
      'numberposts' => -1,
        'meta_key'    => '_customer_user',
      'meta_value'  => $user_id,
        'post_type'   => 'shop_order',
    ) );

    $totall = 0;
    foreach ( $customer_orders as $customer_order ) {
    $order      = wc_get_order( $customer_order );
    $totall += $order->get_total();
    }

    if ( $totall > 500 ) {
        update_user_meta( $order->user_id, 'paying_customer', 1 );
       $user = new WP_User( $order->user_id );

        if( get_role('customer') ){
             $user->remove_role( 'customer' ); 
             $user->add_role( 'dovclient' );
        }
   }
}
add_action( 'woocommerce_order_status_completed', 'wpa_120656_convert_paying_customer' );