是否可以在包含文件期间更改或取消设置Class对象？

I have 3 files StartTrack.php, AustPost.php and print_order.php.

StartTrack.php, AustPost.php in this both files i have declared Class and it's object and in print_order.php i am just including both files based on condition.

For example (In print_order.php) :

I got shipping methods "startrack" And "auspost".

If i found startrack then StartTrack.php file is include else include AustPost.php.

So actually i stuck when there multiple orders i got.

For example :: i have total 3 orders, in loop i got there are 2 orders are startrack and 1 is austpost so StartTrack.php will be included 2 times and AustPost.php file one time but problem is StartTrack.php is included only once.

Following is my code...

1 ) print_order.php

foreach($ordersinfo['order'] as $orders){
     $customerDeliveryMethod = $orders['delivery_method']; 
     if($customerDeliveryMethod == 'startrack'){
        include("StarTrack.php");

    }elseif ($customerDeliveryMethod == 'austpost') {
        include("AusPost.php");

    }
}

2) StartTrack.php

class StarTrack 
{

    function __construct(argument)
    {
        echo "StarTrack File Called";
    }
}


$StarTrack = new StarTrack;

3) AustPost.php

class AusPost 
{

    function __construct(argument)
    {
        echo "AusPost File Called";
    }
}


$AusPost = new AusPost;

I could not show my full code because of it's too large in all files i am just adding necessary parts of code in each files.

So my main instance is to find out file will be included multiple times based on shipping methods value.

Startrack have 2 orders to this file will include 2 times not once and Auspost file will include only 1 time because it has only one order.

Please help me how could i resolve this, Is there any class object issue or other?