call core php file function in magento 2 controller

Question

I am working on a API integration in magento2. That API have two php file with there own functions, that I want to call in our controller to implement respective process. I have placed that API library files in parallel with our controller file like -

Our controller - app/code/Mycompany/CustomerAttribute/Controller/Coral/test.php

And library core php files -
app/code/Mycompany/CustomerAttribute/Controller/Coral/Lib/fileOne.php app/code/Mycompany/CustomerAttribute/Controller/Coral/Lib/fileTwo.php

in our test.php controller file I am calling above files as -

use Magento\Customer\Model\Url;
use Magento\Store\Model\ScopeInterface;
use Magento\Framework\Mail\Template\TransportBuilder;
use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\App\Area;

use Magento\Framework\Event\ObserverInterface;

**require 'Lib/fileOne.php';**

and trying to create object like this -

$obj = new FileOne(array(
                        'appId' => $AppId,
                        'key' => $Key
                    ));

But after executing above statement its showing nothing;

Is this a right approach or I am doing something wrong in current method ?

Answer 1

You must need to use Standard way to Implement Libs,for Example how to include 3rd party library in magento 2 (like php xlsx library)

and that way you can access you function in your Extensions. with above way you can also update version of your lib.