如果if为if，则执行代码，否则执行if

Question

此代码执行if和else，任何帮助将不胜感激，谢谢你。

  foreach($each_item as $key => $product)
  {
    foreach($new_item as $key2 => $newproduct)
    {
      if (in_array($product['product_id'], $newproduct)) {
        $this->update_order_items($order_id, $product['product_id'], array(
            "quantity" => $newproduct['quantity'], 
            "price" => $newproduct['price']       
            ));
      }
      else
      {
        $this->delete_order_items($order_id, $product['product_id']);
      }
    }
  }

Answer 1

您能否告诉我们上述代码的结果？

foreach($each_item as $key => $product)
  {
    foreach($new_item as $key2 => $newproduct)
    {
      if (in_array($product['product_id'], $newproduct)) {
        echo '1';
      }
      else
      {
       echo '2'; 
      }
      exit;
    }
  }