This guide explains how to modify the value of the directive php_value include_path.

Modify the include_path

Like any other PHP parameter, include_path is defined in the .user.ini file.

Here is an example of path to use in the .user.ini file:

include_path = .:/home/clients/123456789a12345b12fc345d/web/www.domainetest.abc/public/abc/include

Check out this other guide about phpinfo to verify that your new directive has been applied.