use AdminImportController outside prestashop directory

[Sterk]

Hi all,

I am a little confused in my project: my shop is in this directory  /www/presta

and i am working in other project in this directory /www/syncback

My app syncback must be able to change product image  or other stuff  with products by using AdminImportController.php

So, in my /www/syncback/contoller/mycontorller.php script,  i use this directive : include_once(dirname(__FILE__).'/../../presta/config/config.inc.php');

1) it's include my config.in.php file but it give me an error 500.

2) i know that i need also include   this : require_once  dirname(__FILE__).'/../../presta/controllers/admin/AdminImportController.php';

But no way, so how can include this two file to work with products outside a prestashop directory

PS : 1.7.6.0 / Apache 2.4

Thanks for any help

 

 

[Sterk]

I thinks the problem is in defines_uri.inc.php because all my cosntants like  : (_PS_ADMIN_DIR_ ,   _PS_CONFIG_DIR_ ....) are empty.

Anybody have used prestashop class outside the prestashop directory ?